{"title":"Cisco Router ISR 4000 License","description":"\u003c!--\n Shopify Dawn Theme — Collection Description (SEO-optimized)\n Collection: Cisco ISR 4000 Router Licenses\n Auto-generated: 29 products, 5 router series, 6 license types\n Schema: CollectionPage + FAQPage + ItemList + BreadcrumbList\n--\u003e\n\u003cstyle\u003e\n \/* Override Dawn theme's 66.67% description max-width *\/\n .collection-hero__description.rte {\n max-width: 100% !important;\n }\n\n \/* ---------- Reset \u0026 base ---------- *\/\n .lic-wrap {\n font-family: var(--font-body-family, -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif);\n color: var(--color-base-text, #1a1a1a);\n margin: 0 0 2.5rem;\n line-height: 1.6;\n font-size: 14px;\n container-type: inline-size;\n }\n .lic-wrap *,\n .lic-wrap *::before,\n .lic-wrap *::after { box-sizing: border-box; }\n\n \/* ---------- H1 ---------- *\/\n .lic-h1 {\n font-size: 18px;\n font-weight: 700;\n margin: 0 0 1rem;\n color: var(--color-base-text, #1a1a1a);\n line-height: 1.3;\n }\n\n \/* ---------- SEO snippet (keyword-rich lead) ---------- *\/\n .lic-seo-lead {\n font-size: 14px;\n font-weight: 500;\n color: var(--color-base-text, #1a1a1a);\n margin-bottom: 1.25rem;\n line-height: 1.65;\n }\n .lic-seo-lead strong { color: #005eb8; }\n\n \/* ---------- Trust bar ---------- *\/\n .lic-trust {\n display: grid;\n grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));\n gap: 0;\n border: 1px solid rgba(var(--color-foreground, 0 0 0), .08);\n border-radius: var(--media-radius, 8px);\n overflow: hidden;\n margin-bottom: 1.5rem;\n background: rgba(var(--color-foreground, 0 0 0), .02);\n }\n .lic-trust-item {\n display: flex;\n align-items: center;\n gap: 10px;\n padding: 14px 18px;\n border-right: 1px solid rgba(var(--color-foreground, 0 0 0), .06);\n border-bottom: 1px solid rgba(var(--color-foreground, 0 0 0), .06);\n }\n @container (min-width: 560px) {\n .lic-trust-item { border-bottom: none; }\n }\n .lic-trust-item:last-child { border-right: none; }\n\n .lic-trust-icon {\n flex-shrink: 0;\n width: 36px; height: 36px;\n border-radius: 50%;\n display: flex;\n align-items: center;\n justify-content: center;\n font-size: 16px;\n }\n .lic-trust-icon--mail { background: #e8f0fe; color: #1967d2; }\n .lic-trust-icon--check { background: #e6f4ea; color: #137333; }\n .lic-trust-icon--wrench { background: #fef7e0; color: #b06000; }\n .lic-trust-icon--lock { background: #f3e8fd; color: #7627b0; }\n\n .lic-trust-text strong {\n display: block;\n font-size: 12px;\n font-weight: 600;\n color: var(--color-base-text, #1a1a1a);\n margin-bottom: 2px;\n }\n .lic-trust-text span { font-size: 11px; color: rgba(var(--color-foreground, 0 0 0), .55); }\n\n \/* ---------- Intro block ---------- *\/\n .lic-intro {\n font-size: 13px;\n color: rgba(var(--color-foreground, 0 0 0), .65);\n line-height: 1.75;\n margin-bottom: 1.5rem;\n padding: 16px 18px;\n background: rgba(var(--color-foreground, 0 0 0), .02);\n border-left: 3px solid #005eb8;\n border-radius: 0 var(--media-radius, 6px) var(--media-radius, 6px) 0;\n }\n .lic-intro p { margin: 0 0 10px; }\n .lic-intro p:last-child { margin-bottom: 0; }\n .lic-intro a { color: #005eb8; text-decoration: none; font-weight: 500; }\n .lic-intro a:hover { text-decoration: underline; }\n .lic-intro h3 {\n font-size: 15px;\n font-weight: 600;\n margin: 16px 0 8px;\n color: var(--color-base-text, #1a1a1a);\n }\n .lic-intro ul {\n margin: 8px 0;\n padding-left: 1.2rem;\n list-style: none;\n }\n .lic-intro li {\n position: relative;\n padding: 3px 0 3px 18px;\n font-size: 13px;\n }\n .lic-intro li::before {\n content: '';\n position: absolute;\n left: 0;\n top: 8px;\n width: 8px;\n height: 8px;\n border-radius: 50%;\n background: #005eb8;\n opacity: .4;\n }\n .lic-intro li strong { color: var(--color-base-text, #1a1a1a); }\n\n \/* ---------- License type cards (with images) ---------- *\/\n .lic-type-grid {\n display: grid;\n grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));\n gap: 12px;\n margin-bottom: 1.5rem;\n }\n .lic-type-card {\n border: 1px solid rgba(var(--color-foreground, 0 0 0), .08);\n border-radius: var(--media-radius, 8px);\n padding: 14px;\n background: #fff;\n display: flex;\n gap: 12px;\n align-items: flex-start;\n }\n .lic-type-icon {\n flex-shrink: 0;\n width: 44px; height: 44px;\n border-radius: 8px;\n display: flex;\n align-items: center;\n justify-content: center;\n font-size: 20px;\n }\n .lic-type-icon--sec { background: #fde8ec; }\n .lic-type-icon--hsec { background: #f3e8fd; }\n .lic-type-icon--uc { background: #e2f5ea; }\n .lic-type-icon--app { background: #fff3e0; }\n .lic-type-icon--boost { background: #e3edf9; }\n .lic-type-icon--perf { background: #fef7e0; }\n .lic-type-body { flex: 1; min-width: 0; }\n .lic-type-name {\n font-size: 13px;\n font-weight: 600;\n color: var(--color-base-text, #1a1a1a);\n margin-bottom: 3px;\n }\n .lic-type-desc {\n font-size: 11px;\n color: rgba(var(--color-foreground, 0 0 0), .55);\n line-height: 1.55;\n }\n\n \/* ---------- License finder ---------- *\/\n .lic-finder {\n border: 1px solid rgba(var(--color-foreground, 0 0 0), .1);\n border-radius: var(--media-radius, 8px);\n padding: 1.15rem 1.25rem;\n margin-bottom: 1.5rem;\n background: #fff;\n box-shadow: 0 1px 4px rgba(0,0,0,.03);\n }\n .lic-finder-title {\n font-size: 13px;\n font-weight: 600;\n margin-bottom: 14px;\n color: var(--color-base-text, #1a1a1a);\n }\n .lic-finder-cols {\n display: flex;\n gap: 1.25rem;\n flex-wrap: wrap;\n }\n .lic-finder-col { flex: 1 1 220px; }\n .lic-finder-label {\n font-size: 11px;\n color: rgba(var(--color-foreground, 0 0 0), .5);\n text-transform: uppercase;\n letter-spacing: .06em;\n margin-bottom: 9px;\n font-weight: 500;\n }\n .lic-chips { display: flex; gap: 7px; flex-wrap: wrap; }\n .lic-chip {\n padding: 6px 14px;\n border-radius: 20px;\n border: 1.5px solid rgba(var(--color-foreground, 0 0 0), .18);\n font-size: 12px;\n font-weight: 500;\n cursor: pointer;\n background: #fff;\n color: var(--color-base-text, #1a1a1a);\n transition: all .15s ease;\n user-select: none;\n white-space: nowrap;\n }\n .lic-chip:hover {\n border-color: #005eb8;\n color: #005eb8;\n background: #f5f9ff;\n }\n .lic-chip.is-active {\n background: #005eb8;\n border-color: #005eb8;\n color: #fff;\n font-weight: 600;\n }\n\n \/* Finder result *\/\n .lic-finder-result {\n display: none;\n margin-top: 14px;\n padding: 12px 16px;\n background: #eaf5ea;\n border-radius: 6px;\n font-size: 13px;\n line-height: 1.7;\n color: #1e4620;\n border: 1px solid #c6e6c6;\n }\n .lic-finder-result.is-visible { display: block; }\n .lic-finder-result a {\n color: #005eb8;\n font-weight: 600;\n text-decoration: none;\n }\n .lic-finder-result a:hover { text-decoration: underline; }\n .lic-finder-result .lic-no-match {\n color: #8b0000;\n background: #fff0f0;\n padding: 10px 14px;\n border-radius: 6px;\n border: 1px solid #f5c6c6;\n }\n\n \/* ---------- Static link directory (SEO: crawlable fallback) ---------- *\/\n .lic-directory {\n margin-bottom: 1.5rem;\n }\n .lic-directory details \u003e summary {\n font-size: 13px;\n font-weight: 600;\n cursor: pointer;\n color: var(--color-base-text, #1a1a1a);\n padding: 8px 0;\n list-style: none;\n }\n .lic-directory details \u003e summary::-webkit-details-marker { display: none; }\n .lic-directory details \u003e summary::before {\n content: '+ ';\n font-weight: 700;\n color: #005eb8;\n }\n .lic-directory details[open] \u003e summary::before { content: '− '; }\n .lic-directory-grid {\n display: grid;\n grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));\n gap: 6px 16px;\n padding: 10px 0;\n }\n .lic-directory-grid a {\n font-size: 12px;\n color: #005eb8;\n text-decoration: none;\n font-family: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;\n font-size: 11px;\n padding: 4px 0;\n display: block;\n }\n .lic-directory-grid a:hover { text-decoration: underline; }\n\n \/* ---------- Feature matrix ---------- *\/\n .lic-matrix-wrap { margin-bottom: 1.5rem; }\n .lic-matrix-wrap h3 {\n font-size: 15px;\n font-weight: 600;\n margin: 0 0 12px;\n color: var(--color-base-text, #1a1a1a);\n }\n .lic-matrix-wrap ul {\n font-size: 13px;\n color: rgba(var(--color-foreground, 0 0 0), .65);\n line-height: 2;\n padding-left: 1.2rem;\n margin: 0 0 1.25rem;\n display: grid;\n grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));\n list-style: disc;\n }\n .lic-matrix-wrap ul li { margin-left: 1rem; }\n\n \/* Table *\/\n .lic-matrix-table {\n width: 100%;\n border-collapse: collapse;\n font-size: 12px;\n border-radius: var(--media-radius, 8px);\n overflow: hidden;\n border: 1px solid rgba(var(--color-foreground, 0 0 0), .08);\n }\n .lic-matrix-table thead th {\n background: rgba(var(--color-foreground, 0 0 0), .04);\n padding: 10px 14px;\n text-align: left;\n font-weight: 600;\n font-size: 11px;\n text-transform: uppercase;\n letter-spacing: .04em;\n color: var(--color-base-text, #1a1a1a);\n border-bottom: 2px solid rgba(var(--color-foreground, 0 0 0), .08);\n white-space: nowrap;\n }\n .lic-matrix-table tbody td {\n padding: 10px 14px;\n border-bottom: 1px solid rgba(var(--color-foreground, 0 0 0), .05);\n color: rgba(var(--color-foreground, 0 0 0), .7);\n vertical-align: top;\n line-height: 1.6;\n }\n .lic-matrix-table tbody tr:last-child td { border-bottom: none; }\n .lic-matrix-table tbody tr:nth-child(even) td { background: rgba(var(--color-foreground, 0 0 0), .01); }\n .lic-matrix-table td:first-child { font-weight: 600; color: var(--color-base-text, #1a1a1a); white-space: nowrap; }\n\n \/* License type badge *\/\n .lic-badge {\n display: inline-block;\n padding: 3px 10px;\n border-radius: 4px;\n font-size: 10px;\n font-weight: 700;\n text-transform: uppercase;\n letter-spacing: .03em;\n margin-bottom: 3px;\n }\n .lic-badge--sec { background: #fde8ec; color: #9a0032; }\n .lic-badge--hsec { background: #f3e8fd; color: #7627b0; }\n .lic-badge--uc { background: #e2f5ea; color: #155a2b; }\n .lic-badge--app { background: #fff3e0; color: #7c4200; }\n .lic-badge--boost { background: #e3edf9; color: #003d82; }\n .lic-badge--perf { background: #fef7e0; color: #b06000; }\n\n \/* Part number links *\/\n .lic-sku {\n font-family: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;\n font-size: 11px;\n color: #005eb8;\n text-decoration: none;\n font-weight: 500;\n display: block;\n margin: 2px 0;\n }\n .lic-sku:hover { text-decoration: underline; }\n\n \/* ---------- FAQ (SEO: FAQPage schema) ---------- *\/\n .lic-faq { margin-bottom: 1.5rem; }\n .lic-faq details {\n border: 1px solid rgba(var(--color-foreground, 0 0 0), .08);\n border-radius: var(--media-radius, 6px);\n margin-bottom: 6px;\n background: #fff;\n }\n .lic-faq details \u003e summary {\n font-size: 13px;\n font-weight: 600;\n padding: 12px 38px 12px 16px;\n cursor: pointer;\n color: var(--color-base-text, #1a1a1a);\n position: relative;\n list-style: none;\n }\n .lic-faq details \u003e summary::-webkit-details-marker { display: none; }\n .lic-faq details \u003e summary::after {\n content: '';\n position: absolute;\n right: 14px; top: 50%;\n transform: translateY(-50%);\n width: 10px; height: 10px;\n background: url(\"data:image\/svg+xml,%3Csvg xmlns='http:\/\/www.w3.org\/2000\/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%23005eb8' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'\/%3E%3C\/svg%3E\") center\/contain no-repeat;\n transition: transform .2s;\n }\n .lic-faq details[open] \u003e summary::after { transform: translateY(-50%) rotate(180deg); }\n .lic-faq .lic-faq-body {\n padding: 0 16px 14px;\n font-size: 13px;\n color: rgba(var(--color-foreground, 0 0 0), .65);\n line-height: 1.75;\n }\n .lic-faq .lic-faq-body a { color: #005eb8; text-decoration: none; font-weight: 500; }\n .lic-faq .lic-faq-body a:hover { text-decoration: underline; }\n\n \/* ---------- Delivery steps ---------- *\/\n .lic-steps {\n display: grid;\n grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));\n gap: 0;\n margin-bottom: 1.5rem;\n border: 1px solid rgba(var(--color-foreground, 0 0 0), .08);\n border-radius: var(--media-radius, 8px);\n overflow: hidden;\n background: rgba(var(--color-foreground, 0 0 0), .02);\n }\n .lic-step {\n padding: 16px 12px;\n text-align: center;\n border-right: 1px solid rgba(var(--color-foreground, 0 0 0), .06);\n border-bottom: 1px solid rgba(var(--color-foreground, 0 0 0), .06);\n }\n @container (min-width: 560px) {\n .lic-step { border-bottom: none; }\n }\n .lic-step:last-child { border-right: none; }\n .lic-step-num {\n width: 28px; height: 28px;\n border-radius: 50%;\n background: #005eb8;\n color: #fff;\n font-size: 12px;\n font-weight: 700;\n display: flex;\n align-items: center;\n justify-content: center;\n margin: 0 auto 10px;\n flex-shrink: 0;\n }\n .lic-step-title {\n font-size: 12px;\n font-weight: 600;\n color: var(--color-base-text, #1a1a1a);\n margin-bottom: 4px;\n }\n .lic-step-sub {\n font-size: 11px;\n color: rgba(var(--color-foreground, 0 0 0), .55);\n line-height: 1.45;\n }\n .lic-step-sub code {\n font-family: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;\n font-size: 10px;\n background: rgba(var(--color-foreground, 0 0 0), .05);\n padding: 2px 5px;\n border-radius: 3px;\n }\n\n \/* ---------- Disclaimer ---------- *\/\n .lic-note {\n font-size: 11px;\n color: rgba(var(--color-foreground, 0 0 0), .45);\n border-top: 1px solid rgba(var(--color-foreground, 0 0 0), .06);\n padding-top: 12px;\n line-height: 1.7;\n }\n\n \/* ---------- Responsive: narrow ---------- *\/\n @container (max-width: 480px) {\n .lic-type-grid { grid-template-columns: 1fr; }\n .lic-matrix-table { font-size: 11px; }\n .lic-matrix-table thead th,\n .lic-matrix-table tbody td { padding: 8px 10px; }\n .lic-sku { font-size: 10px; }\n .lic-matrix-table thead { display: none; }\n .lic-matrix-table tbody td {\n display: block;\n text-align: left;\n padding: 8px 12px;\n }\n .lic-matrix-table tbody td:first-child {\n font-weight: 700;\n background: rgba(var(--color-foreground, 0 0 0), .03);\n font-size: 12px;\n }\n .lic-matrix-table tbody td::before {\n content: attr(data-label);\n display: block;\n font-size: 10px;\n font-weight: 600;\n text-transform: uppercase;\n letter-spacing: .03em;\n color: rgba(var(--color-foreground, 0 0 0), .45);\n margin-bottom: 4px;\n }\n .lic-directory-grid { grid-template-columns: 1fr; }\n }\n\n \/* ---------- Wide screens: FAQ 2-column ---------- *\/\n @container (min-width: 700px) {\n .lic-faq-grid {\n display: grid;\n grid-template-columns: 1fr 1fr;\n gap: 6px;\n }\n }\n\u003c\/style\u003e\n\u003c!-- =============================================\n Schema.org Structured Data\n ============================================= --\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"lic-wrap\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/CollectionPage\"\u003e\n\u003cmeta itemprop=\"name\" content=\"Cisco ISR 4000 Router Licenses\"\u003e \u003cmeta itemprop=\"description\" content=\"Buy genuine Cisco ISR 4000 Series software licenses — Security, HSEC, UC, AppX, Boost, and Performance for 4221, 4321, 4331, 4351, 4431, and 4451 routers. Instant e-delivery, 100% working guarantee.\"\u003e \u003c!-- ============ H1 ============ --\u003e\n\u003ch1 class=\"lic-h1\"\u003eCisco ISR 4000 Router Licenses — Buy Genuine Security, HSEC, UC, AppX, Boost \u0026amp; Performance Keys\u003c\/h1\u003e\n\u003c!-- ============ SEO lead paragraph ============ --\u003e\n\u003cp class=\"lic-seo-lead\"\u003e\u003cstrong\u003eGenuine Cisco ISR 4000 licenses\u003c\/strong\u003e for 4221, 4321, 4331, 4351, 4431, and 4451 routers. Instant e-delivery worldwide · 100% working guarantee · Free installation support. Security (SEC), High Security (HSEC), Unified Communications (UC), AppX, Boost, and Performance — all license types in stock starting from $20.\u003c\/p\u003e\n\u003c!-- ============ Trust bar ============ --\u003e\n\u003cdiv class=\"lic-trust\" role=\"list\" aria-label=\"Service guarantees\"\u003e\n\u003cdiv class=\"lic-trust-item\" role=\"listitem\"\u003e\n\u003cdiv class=\"lic-trust-icon lic-trust-icon--mail\" aria-hidden=\"true\"\u003e\u003csvg width=\"16\" height=\"16\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003crect x=\"2\" y=\"4\" width=\"20\" height=\"16\" rx=\"2\"\u003e\u003c\/rect\u003e\u003cpath d=\"m22 4-10 8L2 4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"lic-trust-text\"\u003e\n\u003cstrong\u003eE-delivery within 24h\u003c\/strong\u003e \u003cspan\u003eLicense file sent by email\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lic-trust-item\" role=\"listitem\"\u003e\n\u003cdiv class=\"lic-trust-icon lic-trust-icon--check\" aria-hidden=\"true\"\u003e\u003csvg width=\"16\" height=\"16\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M22 11.08V12a10 10 0 1 1-5.93-9.14\"\u003e\u003c\/path\u003e\u003cpolyline points=\"22 4 12 14.01 9 11.01\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"lic-trust-text\"\u003e\n\u003cstrong\u003e100% working guarantee\u003c\/strong\u003e \u003cspan\u003eFull refund if activation fails\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lic-trust-item\" role=\"listitem\"\u003e\n\u003cdiv class=\"lic-trust-icon lic-trust-icon--wrench\" aria-hidden=\"true\"\u003e\u003csvg width=\"16\" height=\"16\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003ccircle cx=\"12\" cy=\"12\" r=\"10\"\u003e\u003c\/circle\u003e\u003cpath d=\"M12 6v6l4 2\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"lic-trust-text\"\u003e\n\u003cstrong\u003eFree install support\u003c\/strong\u003e \u003cspan\u003eStep-by-step activation help\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lic-trust-item\" role=\"listitem\"\u003e\n\u003cdiv class=\"lic-trust-icon lic-trust-icon--lock\" aria-hidden=\"true\"\u003e\u003csvg width=\"16\" height=\"16\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003crect x=\"3\" y=\"11\" width=\"18\" height=\"11\" rx=\"2\"\u003e\u003c\/rect\u003e\u003cpath d=\"M7 11V7a5 5 0 0 1 10 0v4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"lic-trust-text\"\u003e\n\u003cstrong\u003eSecure checkout\u003c\/strong\u003e \u003cspan\u003ePayPal \u0026amp; Shopify Payments\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ============ License type cards ============ --\u003e\n\u003cdiv class=\"lic-type-grid\" role=\"list\" aria-label=\"License types available\"\u003e\n\u003cdiv class=\"lic-type-card\" role=\"listitem\"\u003e\n\u003cdiv class=\"lic-type-icon lic-type-icon--sec\" aria-hidden=\"true\"\u003e\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#9a0032\" stroke-width=\"2\"\u003e\u003crect x=\"3\" y=\"11\" width=\"18\" height=\"11\" rx=\"2\"\u003e\u003c\/rect\u003e\u003cpath d=\"M7 11V7a5 5 0 0 1 10 0v4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"lic-type-body\"\u003e\n\u003cdiv class=\"lic-type-name\"\u003eSecurity (SEC)\u003c\/div\u003e\n\u003cdiv class=\"lic-type-desc\"\u003eIPsec VPN, zone-based firewall, SSL VPN, intrusion prevention\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lic-type-card\" role=\"listitem\"\u003e\n\u003cdiv class=\"lic-type-icon lic-type-icon--hsec\" aria-hidden=\"true\"\u003e\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#7627b0\" stroke-width=\"2\"\u003e\u003cpath d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"lic-type-body\"\u003e\n\u003cdiv class=\"lic-type-name\"\u003eHigh Security (HSEC)\u003c\/div\u003e\n\u003cdiv class=\"lic-type-desc\"\u003eRemoves crypto limits, higher VPN throughput\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lic-type-card\" role=\"listitem\"\u003e\n\u003cdiv class=\"lic-type-icon lic-type-icon--uc\" aria-hidden=\"true\"\u003e\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#155a2b\" stroke-width=\"2\"\u003e\u003cpath d=\"M22 16.92v3a2 2 0 0 1-2.18 2 19.79 19.79 0 0 1-8.63-3.07 19.5 19.5 0 0 1-6-6 19.79 19.79 0 0 1-3.07-8.67A2 2 0 0 1 4.11 2h3a2 2 0 0 1 2 1.72c.127.96.361 1.903.7 2.81a2 2 0 0 1-.45 2.11L8.09 9.91a16 16 0 0 0 6 6l1.27-1.27a2 2 0 0 1 2.11-.45c.907.339 1.85.573 2.81.7A2 2 0 0 1 22 16.92z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"lic-type-body\"\u003e\n\u003cdiv class=\"lic-type-name\"\u003eUnified Comm. (UC)\u003c\/div\u003e\n\u003cdiv class=\"lic-type-desc\"\u003eCME, voicemail, SIP\/H.323, SRST telephony\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lic-type-card\" role=\"listitem\"\u003e\n\u003cdiv class=\"lic-type-icon lic-type-icon--app\" aria-hidden=\"true\"\u003e\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#7c4200\" stroke-width=\"2\"\u003e\u003cpolygon points=\"12 2 15.09 8.26 22 9.27 17 14.14 18.18 21.02 12 17.77 5.82 21.02 7 14.14 2 9.27 8.91 8.26 12 2\"\u003e\u003c\/polygon\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"lic-type-body\"\u003e\n\u003cdiv class=\"lic-type-name\"\u003eAppX (APP)\u003c\/div\u003e\n\u003cdiv class=\"lic-type-desc\"\u003eAll-in-one: SEC + UC + routing + WAN optimization\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lic-type-card\" role=\"listitem\"\u003e\n\u003cdiv class=\"lic-type-icon lic-type-icon--boost\" aria-hidden=\"true\"\u003e\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#003d82\" stroke-width=\"2\"\u003e\u003cpolyline points=\"13 2 3 14 12 14 11 22 21 10 12 10 13 2\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"lic-type-body\"\u003e\n\u003cdiv class=\"lic-type-name\"\u003eBoost\u003c\/div\u003e\n\u003cdiv class=\"lic-type-desc\"\u003eIncreases aggregate router throughput, no hardware change\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lic-type-card\" role=\"listitem\"\u003e\n\u003cdiv class=\"lic-type-icon lic-type-icon--perf\" aria-hidden=\"true\"\u003e\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#b06000\" stroke-width=\"2\"\u003e\u003cline x1=\"12\" y1=\"20\" x2=\"12\" y2=\"10\"\u003e\u003c\/line\u003e\u003cline x1=\"18\" y1=\"20\" x2=\"18\" y2=\"4\"\u003e\u003c\/line\u003e\u003cline x1=\"6\" y1=\"20\" x2=\"6\" y2=\"16\"\u003e\u003c\/line\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"lic-type-body\"\u003e\n\u003cdiv class=\"lic-type-name\"\u003ePerformance\u003c\/div\u003e\n\u003cdiv class=\"lic-type-desc\"\u003eBandwidth tier upgrade (35M→1G depending on model)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ============ Intro ============ --\u003e\n\u003cdiv class=\"lic-intro\"\u003e\n\u003cp\u003eCisco ISR 4000 Series Integrated Services Routers are the next-generation branch platform succeeding the ISR G2 family. Models include the \u003cstrong\u003e\u003ca href=\"\/collections\/isr4000-router?filter.p.product_type=ISR+4221\"\u003eISR 4221\u003c\/a\u003e, \u003ca href=\"\/collections\/isr4000-router?filter.p.product_type=ISR+4321\"\u003e4321\u003c\/a\u003e, \u003ca href=\"\/collections\/isr4000-router?filter.p.product_type=ISR+4331\"\u003e4331\u003c\/a\u003e, \u003ca href=\"\/collections\/isr4000-router?filter.p.product_type=ISR+4351\"\u003e4351\u003c\/a\u003e, \u003ca href=\"\/collections\/isr4000-router?filter.p.product_type=ISR+4431\"\u003e4431\u003c\/a\u003e, and \u003ca href=\"\/collections\/isr4000-router?filter.p.product_type=ISR+4451\"\u003e4451\u003c\/a\u003e\u003c\/strong\u003e — spanning entry-level to high-performance branch routers with modular service capabilities, embedded security, and application-aware routing.\u003c\/p\u003e\n\u003cp\u003eUnlike the ISR G2 series, ISR 4000 routers use a \u003cstrong\u003esingle universal IOS XE image\u003c\/strong\u003e with software-activated feature licenses. The base IP Base license is included with the hardware. Additional technology packages unlock advanced networking, security, voice, and performance capabilities without replacing hardware or reloading software.\u003c\/p\u003e\n\u003cp\u003eThis collection covers all ISR 4000 license types — \u003cstrong\u003eSecurity (SEC), High Security (HSEC), Unified Communications (UC), Application Experience (AppX), Boost (throughput upgrade), and Performance (bandwidth tier upgrade)\u003c\/strong\u003e. All licenses are delivered electronically via email within 24 hours.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ============ License Finder ============ --\u003e\n\u003cdiv class=\"lic-finder\" role=\"region\" aria-label=\"License finder\" aria-live=\"polite\"\u003e\n\u003cdiv class=\"lic-finder-title\"\u003e\n\u003csvg width=\"16\" height=\"16\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"vertical-align: -3px; margin-right: 4px;\" aria-hidden=\"true\"\u003e\u003ccircle cx=\"11\" cy=\"11\" r=\"8\"\u003e\u003c\/circle\u003e\u003cpath d=\"m21 21-4.35-4.35\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Not sure which license you need? Select your router and requirements:\u003c\/div\u003e\n\u003cdiv class=\"lic-finder-cols\"\u003e\n\u003cdiv class=\"lic-finder-col\"\u003e\n\u003cdiv class=\"lic-finder-label\"\u003eMy router model\u003c\/div\u003e\n\u003cdiv class=\"lic-chips\" role=\"radiogroup\" aria-label=\"Router model\"\u003e\n\u003cbutton class=\"lic-chip\" data-group=\"series\" data-value=\"4220\" role=\"radio\" aria-checked=\"false\"\u003eISR 4221\u003c\/button\u003e \u003cbutton class=\"lic-chip\" data-group=\"series\" data-value=\"4320\" role=\"radio\" aria-checked=\"false\"\u003eISR 4321\u003c\/button\u003e \u003cbutton class=\"lic-chip\" data-group=\"series\" data-value=\"4330\" role=\"radio\" aria-checked=\"false\"\u003eISR 4331\u003c\/button\u003e \u003cbutton class=\"lic-chip\" data-group=\"series\" data-value=\"4350\" role=\"radio\" aria-checked=\"false\"\u003eISR 4351\u003c\/button\u003e \u003cbutton class=\"lic-chip\" data-group=\"series\" data-value=\"44\" role=\"radio\" aria-checked=\"false\"\u003eISR 4431 \/ 4451\u003c\/button\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lic-finder-col\"\u003e\n\u003cdiv class=\"lic-finder-label\"\u003eI need to enable\u003c\/div\u003e\n\u003cdiv class=\"lic-chips\" role=\"radiogroup\" aria-label=\"Feature type\"\u003e\n\u003cbutton class=\"lic-chip\" data-group=\"type\" data-value=\"SEC\" role=\"radio\" aria-checked=\"false\"\u003eVPN \/ Firewall\u003c\/button\u003e \u003cbutton class=\"lic-chip\" data-group=\"type\" data-value=\"HSEC\" role=\"radio\" aria-checked=\"false\"\u003eHigh Security\u003c\/button\u003e \u003cbutton class=\"lic-chip\" data-group=\"type\" data-value=\"UC\" role=\"radio\" aria-checked=\"false\"\u003eVoice \/ UC\u003c\/button\u003e \u003cbutton class=\"lic-chip\" data-group=\"type\" data-value=\"APP\" role=\"radio\" aria-checked=\"false\"\u003eAll Features\u003c\/button\u003e \u003cbutton class=\"lic-chip\" data-group=\"type\" data-value=\"BOOST\" role=\"radio\" aria-checked=\"false\"\u003eThroughput Boost\u003c\/button\u003e \u003cbutton class=\"lic-chip\" data-group=\"type\" data-value=\"PERF\" role=\"radio\" aria-checked=\"false\"\u003ePerformance Tier\u003c\/button\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lic-finder-result\" id=\"lic-result\" role=\"status\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ============ Static link directory (SEO crawlable) ============ --\u003e\n\u003cdiv class=\"lic-directory\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eBrowse all 29 Cisco ISR 4000 license products by model\u003c\/summary\u003e\n\u003cdiv class=\"lic-directory-grid\"\u003e\n\u003ca href=\"https:\/\/switchlicense.com\/products\/l-sl-4220-sec-k9\"\u003eL-SL-4220-SEC-K9 — ISR 4221 Security\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-sl-4220-app-k9\"\u003eL-SL-4220-APP-K9 — ISR 4221 AppX\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-fl-4220-boost-k9\"\u003eL-FL-4220-BOOST-K9 — ISR 4221 Boost\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-fl-4220-perf-k9\"\u003eL-FL-4220-PERF-K9 — ISR 4221 Performance\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-sl-4320-sec-k9\"\u003eL-SL-4320-SEC-K9 — ISR 4321 Security\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-fl-4320-hsec-k9\"\u003eL-FL-4320-HSEC-K9 — ISR 4321 HSEC\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-sl-4320-uc-k9\"\u003eL-SL-4320-UC-K9 — ISR 4321 UC\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-sl-4320-app-k9\"\u003eL-SL-4320-APP-K9 — ISR 4321 AppX\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-fl-4320-boost-k9\"\u003eL-FL-4320-BOOST-K9 — ISR 4321 Boost\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-fl-4320-perf-k9\"\u003eL-FL-4320-PERF-K9 — ISR 4321 Performance\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-sl-4330-sec-k9\"\u003eL-SL-4330-SEC-K9 — ISR 4331 Security\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-fl-4330-hsec-k9\"\u003eL-FL-4330-HSEC-K9 — ISR 4331 HSEC\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-sl-4330-uc-k9\"\u003eL-SL-4330-UC-K9 — ISR 4331 UC\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-sl-4330-app-k9\"\u003eL-SL-4330-APP-K9 — ISR 4331 AppX\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-fl-4330-boost-k9\"\u003eL-FL-4330-BOOST-K9 — ISR 4331 Boost\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-fl-4330-perf-k9\"\u003eL-FL-4330-PERF-K9 — ISR 4331 Performance\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-sl-4350-sec-k9\"\u003eL-SL-4350-SEC-K9 — ISR 4351 Security\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-fl-4350-hsec-k9\"\u003eL-FL-4350-HSEC-K9 — ISR 4351 HSEC\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-sl-4350-uc-k9\"\u003eL-SL-4350-UC-K9 — ISR 4351 UC\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-sl-4350-app-k9\"\u003eL-SL-4350-APP-K9 — ISR 4351 AppX\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-fl-4350-boost-k9\"\u003eL-FL-4350-BOOST-K9 — ISR 4351 Boost\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-fl-4350-perf-k9\"\u003eL-FL-4350-PERF-K9 — ISR 4351 Performance\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-sl-44-sec-k9\"\u003eL-SL-44-SEC-K9 — ISR 4431\/4451 Security\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-fl-44-hsec-k9\"\u003eL-FL-44-HSEC-K9 — ISR 4431\/4451 HSEC\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-sl-44-uc-k9\"\u003eL-SL-44-UC-K9 — ISR 4431\/4451 UC\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-sl-44-app-k9\"\u003eL-SL-44-APP-K9 — ISR 4431\/4451 AppX\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-fl-44-boost-k9\"\u003eL-FL-44-BOOST-K9 — ISR 4431\/4451 Boost\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-fl-44-perf-k9\"\u003eL-FL-44-PERF-K9 — ISR 4431\/4451 Performance\u003c\/a\u003e \u003ca href=\"https:\/\/switchlicense.com\/products\/l-fl-4430-boost-k9\"\u003eL-FL-4430-BOOST-K9 — ISR 4431 Boost\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c!-- ============ Feature matrix ============ --\u003e\n\u003cdiv class=\"lic-matrix-wrap\"\u003e\n\u003ch3\u003eSupported Router Models\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCisco ISR 4221\u003c\/li\u003e\n\u003cli\u003eCisco ISR 4321\u003c\/li\u003e\n\u003cli\u003eCisco ISR 4331\u003c\/li\u003e\n\u003cli\u003eCisco ISR 4351\u003c\/li\u003e\n\u003cli\u003eCisco ISR 4431\u003c\/li\u003e\n\u003cli\u003eCisco ISR 4451\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eLicense Comparison — What Each Package Unlocks\u003c\/h3\u003e\n\u003ctable class=\"lic-matrix-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003ePackage\u003c\/th\u003e\n\u003cth scope=\"col\"\u003ePart numbers\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eKey features unlocked\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003c!-- SEC --\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Package\"\u003e\n\u003cspan class=\"lic-badge lic-badge--sec\"\u003eSEC\u003c\/span\u003e Security\u003c\/td\u003e\n\u003ctd data-label=\"Part numbers\"\u003e\n\u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-sl-4220-sec-k9\"\u003eL-SL-4220-SEC-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-sl-4320-sec-k9\"\u003eL-SL-4320-SEC-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-sl-4330-sec-k9\"\u003eL-SL-4330-SEC-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-sl-4350-sec-k9\"\u003eL-SL-4350-SEC-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-sl-44-sec-k9\"\u003eL-SL-44-SEC-K9\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd data-label=\"Key features\"\u003eIPsec VPN (site-to-site \u0026amp; remote access) · Zone-based firewall (ZFW) · SSL VPN · GET VPN · IOS IPS intrusion prevention\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c!-- HSEC --\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Package\"\u003e\n\u003cspan class=\"lic-badge lic-badge--hsec\"\u003eHSEC\u003c\/span\u003e High Security\u003c\/td\u003e\n\u003ctd data-label=\"Part numbers\"\u003e\n\u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-fl-4320-hsec-k9\"\u003eL-FL-4320-HSEC-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-fl-4330-hsec-k9\"\u003eL-FL-4330-HSEC-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-fl-4350-hsec-k9\"\u003eL-FL-4350-HSEC-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-fl-44-hsec-k9\"\u003eL-FL-44-HSEC-K9\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd data-label=\"Key features\"\u003eRemoves crypto throughput restrictions · Enables higher IPsec VPN throughput · Supports maximum tunnel count for the platform · Required for regulatory compliance in certain regions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c!-- UC --\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Package\"\u003e\n\u003cspan class=\"lic-badge lic-badge--uc\"\u003eUC\u003c\/span\u003e Unified Comm.\u003c\/td\u003e\n\u003ctd data-label=\"Part numbers\"\u003e\n\u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-sl-4320-uc-k9\"\u003eL-SL-4320-UC-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-sl-4330-uc-k9\"\u003eL-SL-4330-UC-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-sl-4350-uc-k9\"\u003eL-SL-4350-UC-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-sl-44-uc-k9\"\u003eL-SL-44-UC-K9\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd data-label=\"Key features\"\u003eCisco CME (Unified Communications Manager Express) · Unity Express voicemail · SIP \u0026amp; H.323 gateway · SRST survivable telephony · Conferencing \u0026amp; transcoding\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c!-- APP --\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Package\"\u003e\n\u003cspan class=\"lic-badge lic-badge--app\"\u003eAPP\u003c\/span\u003e AppX\u003c\/td\u003e\n\u003ctd data-label=\"Part numbers\"\u003e\n\u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-sl-4220-app-k9\"\u003eL-SL-4220-APP-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-sl-4320-app-k9\"\u003eL-SL-4320-APP-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-sl-4330-app-k9\"\u003eL-SL-4330-APP-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-sl-4350-app-k9\"\u003eL-SL-4350-APP-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-sl-44-app-k9\"\u003eL-SL-44-APP-K9\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd data-label=\"Key features\"\u003eAll SEC + UC + DATA features · Application Experience (AX) · Full WAAS WAN optimization · Application visibility \u0026amp; control · \u003cstrong\u003eBest value — single license for all advanced features\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c!-- BOOST --\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Package\"\u003e\n\u003cspan class=\"lic-badge lic-badge--boost\"\u003eBOOST\u003c\/span\u003e Throughput\u003c\/td\u003e\n\u003ctd data-label=\"Part numbers\"\u003e\n\u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-fl-4220-boost-k9\"\u003eL-FL-4220-BOOST-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-fl-4320-boost-k9\"\u003eL-FL-4320-BOOST-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-fl-4330-boost-k9\"\u003eL-FL-4330-BOOST-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-fl-4350-boost-k9\"\u003eL-FL-4350-BOOST-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-fl-44-boost-k9\"\u003eL-FL-44-BOOST-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-fl-4430-boost-k9\"\u003eL-FL-4430-BOOST-K9\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd data-label=\"Key features\"\u003eIncreases aggregate router throughput beyond base level · Adds headroom for concurrent services · No hardware upgrade required · License activation via Cisco Smart Licensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c!-- PERF --\u003e\n\u003ctr\u003e\n\u003ctd data-label=\"Package\"\u003e\n\u003cspan class=\"lic-badge lic-badge--perf\"\u003ePERF\u003c\/span\u003e Performance\u003c\/td\u003e\n\u003ctd data-label=\"Part numbers\"\u003e\n\u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-fl-4220-perf-k9\"\u003eL-FL-4220-PERF-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-fl-4320-perf-k9\"\u003eL-FL-4320-PERF-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-fl-4330-perf-k9\"\u003eL-FL-4330-PERF-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-fl-4350-perf-k9\"\u003eL-FL-4350-PERF-K9\u003c\/a\u003e \u003ca class=\"lic-sku\" href=\"https:\/\/switchlicense.com\/products\/l-fl-44-perf-k9\"\u003eL-FL-44-PERF-K9\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd data-label=\"Key features\"\u003eUpgrades performance license tier: 4221 35M→75M · 4321 50M→100M · 4331 100M→300M · 4351 200M→400M · 4431\/4451 500M→1G · No hardware module required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- ============ FAQ (SEO: FAQPage schema) ============ --\u003e\n\u003cdiv class=\"lic-faq\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/FAQPage\"\u003e\n\u003ch3 style=\"font-size: 15px; font-weight: 600; margin: 0 0 10px; color: var(--color-base-text,#1a1a1a);\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv class=\"lic-faq-grid\"\u003e\n\u003cdetails itemscope=\"\" itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003csummary itemprop=\"name\"\u003eWhat license types are available for Cisco ISR 4000 routers?\u003c\/summary\u003e\n\u003cdiv class=\"lic-faq-body\" itemscope=\"\" itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n\u003cdiv itemprop=\"text\"\u003eSix license types are available for Cisco ISR 4000 routers: \u003cstrong\u003eSecurity (SEC)\u003c\/strong\u003e for VPN\/firewall\/IPS, \u003cstrong\u003eHigh Security (HSEC)\u003c\/strong\u003e to remove crypto throughput limits, \u003cstrong\u003eUnified Communications (UC)\u003c\/strong\u003e for voice\/CME\/SRST, \u003cstrong\u003eAppX (APP)\u003c\/strong\u003e — an all-in-one bundle of SEC+UC+DATA+WAAS, \u003cstrong\u003eBoost\u003c\/strong\u003e for aggregate throughput upgrade, and \u003cstrong\u003ePerformance\u003c\/strong\u003e for bandwidth tier upgrade (e.g., 35M→75M on 4221, 200M→400M on 4351).\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails itemscope=\"\" itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003csummary itemprop=\"name\"\u003eWhich Cisco ISR 4000 router models are supported?\u003c\/summary\u003e\n\u003cdiv class=\"lic-faq-body\" itemscope=\"\" itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n\u003cdiv itemprop=\"text\"\u003eAll six ISR 4000 models are supported: \u003cstrong\u003eISR 4221, 4321, 4331, 4351, 4431, and 4451\u003c\/strong\u003e. Each license SKU is model-specific — for example, \u003ca href=\"https:\/\/switchlicense.com\/products\/l-sl-4220-sec-k9\"\u003eL-SL-4220-SEC-K9\u003c\/a\u003e for ISR 4221 and \u003ca href=\"https:\/\/switchlicense.com\/products\/l-sl-44-sec-k9\"\u003eL-SL-44-SEC-K9\u003c\/a\u003e for ISR 4431\/4451.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails itemscope=\"\" itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003csummary itemprop=\"name\"\u003eHow are Cisco ISR 4000 licenses delivered after purchase?\u003c\/summary\u003e\n\u003cdiv class=\"lic-faq-body\" itemscope=\"\" itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n\u003cdiv itemprop=\"text\"\u003eAll licenses are \u003cstrong\u003egenuine Cisco license files\u003c\/strong\u003e delivered electronically via email within 24 hours. After purchase, run \u003ccode\u003eshow license udi\u003c\/code\u003e on your router, send us the output, and you'll receive the .LIC file for instant CLI activation. We provide \u003cstrong\u003efree installation support\u003c\/strong\u003e if needed.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails itemscope=\"\" itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003csummary itemprop=\"name\"\u003eWhat is the difference between ISR 4000 and ISR G2 licensing?\u003c\/summary\u003e\n\u003cdiv class=\"lic-faq-body\" itemscope=\"\" itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n\u003cdiv itemprop=\"text\"\u003eUnlike the ISR G2 series which required separate IOS images per feature set, ISR 4000 routers use a \u003cstrong\u003esingle universal IOS XE image\u003c\/strong\u003e with software-activated feature licenses. You can add Security, UC, or AppX features without replacing hardware or reloading software — simply install the license file and activate the new capabilities.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails itemscope=\"\" itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003csummary itemprop=\"name\"\u003eAre these genuine Cisco licenses? What is the refund policy?\u003c\/summary\u003e\n\u003cdiv class=\"lic-faq-body\" itemscope=\"\" itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\n\u003cdiv itemprop=\"text\"\u003eYes, all licenses are \u003cstrong\u003egenuine Cisco-issued licenses\u003c\/strong\u003e sourced through authorized channels. We are an independent reseller (not affiliated with Cisco Systems). Every license comes with a \u003cstrong\u003e100% working guarantee\u003c\/strong\u003e — full refund if activation fails. Cisco, IOS, ISR 4000, and related marks are registered trademarks of Cisco Systems, Inc.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c!-- \/.lic-faq-grid --\u003e\n\u003c\/div\u003e\n\u003c!-- \/.lic-faq --\u003e \u003c!-- ============ Delivery steps ============ --\u003e\n\u003cdiv class=\"lic-steps\" role=\"list\" aria-label=\"How to order and install\"\u003e\n\u003cdiv class=\"lic-step\" role=\"listitem\"\u003e\n\u003cdiv class=\"lic-step-num\" aria-hidden=\"true\"\u003e1\u003c\/div\u003e\n\u003cdiv class=\"lic-step-title\"\u003ePlace order\u003c\/div\u003e\n\u003cdiv class=\"lic-step-sub\"\u003eSecure checkout via PayPal or card\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lic-step\" role=\"listitem\"\u003e\n\u003cdiv class=\"lic-step-num\" aria-hidden=\"true\"\u003e2\u003c\/div\u003e\n\u003cdiv class=\"lic-step-title\"\u003eSend device info\u003c\/div\u003e\n\u003cdiv class=\"lic-step-sub\"\u003eRun \u003ccode\u003eshow license udi\u003c\/code\u003e on your router\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lic-step\" role=\"listitem\"\u003e\n\u003cdiv class=\"lic-step-num\" aria-hidden=\"true\"\u003e3\u003c\/div\u003e\n\u003cdiv class=\"lic-step-title\"\u003eReceive license\u003c\/div\u003e\n\u003cdiv class=\"lic-step-sub\"\u003eLicense file emailed within 24 hours\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lic-step\" role=\"listitem\"\u003e\n\u003cdiv class=\"lic-step-num\" aria-hidden=\"true\"\u003e4\u003c\/div\u003e\n\u003cdiv class=\"lic-step-title\"\u003eInstall on router\u003c\/div\u003e\n\u003cdiv class=\"lic-step-sub\"\u003eOne CLI command — instant activation\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lic-step\" role=\"listitem\"\u003e\n\u003cdiv class=\"lic-step-num\" aria-hidden=\"true\"\u003e5\u003c\/div\u003e\n\u003cdiv class=\"lic-step-title\"\u003eFree support\u003c\/div\u003e\n\u003cdiv class=\"lic-step-sub\"\u003eWe help if anything goes wrong\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ============ Disclaimer ============ --\u003e\n\u003cdiv class=\"lic-note\"\u003e\n\u003cstrong\u003eDisclaimer:\u003c\/strong\u003e This is an independent reseller. We are not affiliated with Cisco Systems. All licenses are genuine Cisco licenses issued through authorized channels. Cisco, IOS, ISR, ISR 4000, and related marks are registered trademarks of Cisco Systems, Inc.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- \/.lic-wrap --\u003e\u003c!-- =============================================\n License Finder — JavaScript\n ============================================= --\u003e","products":[{"product_id":"l-sl-4220-app-k9","title":"Cisco L-SL-4220-APP-K9 | AppX License for ISR 4221 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-SL-4220-APP-K9 | ISR 4221 Application Experience (AppX) Technology Package License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-SL-4220-APP-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4221 Application Experience (AppX) Technology Package License\u003c\/strong\u003e — the software upgrade that enables deep application visibility and intelligent path control on the Cisco ISR 4221 Integrated Services Router. This \u003cstrong\u003eCisco ISR 4221 APP license\u003c\/strong\u003e activates NBAR2 deep packet inspection for classifying 1,400+ applications, Application Visibility \u0026amp; Control (AVC) for per-application QoS and traffic shaping, Performance Routing v3 (PfRv3) for intelligent WAN path selection, and IP SLA for proactive performance monitoring, making it the ideal upgrade for branch deployments that need application-aware SD-WAN capabilities on the entry-level ISR 4000 platform.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eSL-4220-APP-K9\u003c\/strong\u003e or \u003cstrong\u003eL-SL-4220-APP-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4221 AppX license\u003c\/strong\u003e is a perpetual IOS XE Smart License that upgrades the default IP Base feature set with application-layer intelligence. The license enables \u003cstrong\u003eNBAR2 application recognition\u003c\/strong\u003e for granular traffic classification, \u003cstrong\u003eAVC\u003c\/strong\u003e for per-application bandwidth control and policy enforcement, \u003cstrong\u003ePfRv3\u003c\/strong\u003e for dynamic WAN path selection based on real-time performance metrics like jitter, loss, and MOS score, and \u003cstrong\u003eIP SLA\u003c\/strong\u003e for WAN link health monitoring. Whether you are optimizing SaaS application performance for a small branch or building an SD-WAN edge with application-aware routing, the \u003cstrong\u003eISR 4221 APP license e-delivery\u003c\/strong\u003e brings enterprise-grade application intelligence to the entry-level ISR 4000 router.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eNBAR2 Deep Packet Inspection\u003c\/strong\u003e — classifies over 1,400 applications including SaaS, web, and custom enterprise applications\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eApplication Visibility \u0026amp; Control (AVC)\u003c\/strong\u003e — per-application QoS policies, bandwidth control, and traffic shaping with real-time dashboards\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerformance Routing v3 (PfRv3)\u003c\/strong\u003e — intelligent WAN path selection based on real-time link performance: jitter, packet loss, delay, and MOS scores\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eIP SLA\u003c\/strong\u003e — proactive network performance monitoring with synthetic traffic generation for WAN link health measurement\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eSD-WAN ready\u003c\/strong\u003e — application-aware routing with PfRv3 provides foundation for Cisco SD-WAN deployments\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eDoes NOT include SEC features\u003c\/strong\u003e — firewall and IPsec VPN require a separate SEC license; APP covers application visibility only\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual Smart License\u003c\/strong\u003e — one-time purchase, no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003esmall branch SD-WAN, SaaS optimization, and application-aware routing\u003c\/strong\u003e on the entry-level ISR 4000 platform\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-SL-4220-APP-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4221\u003c\/strong\u003e Integrated Services Router running IOS XE. Requires IOS XE software version 16.x or later with Smart Licensing enabled. The ISR 4221 base throughput is 35 Mbps aggregate; for higher performance, consider adding the \u003cstrong\u003eFL-4220-PERF-K9\u003c\/strong\u003e (75 Mbps) and \u003cstrong\u003eFL-4220-BOOST-K9\u003c\/strong\u003e (requires PERF) throughput licenses. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4321 or other ISR 4000 Series models — each platform uses its own license SKU. Please verify your router model before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4221 router to \u003cstrong\u003e\u003ca style=\"color: #0070d2; text-decoration: none;\" href=\"mailto:support@switchlicense.com\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4221 Application Experience technology package license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required \u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e SL-4220-APP-K9  |  L-SL-4220-APP-K9  |  SL-4220-APP-K9=  |  L-SL-4220-APP-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46945683374300,"sku":"L-SL-4220-APP-K9","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-SL-4220-APP-K9.jpg?v=1776688394"},{"product_id":"l-sl-4220-sec-k9","title":"Cisco L-SL-4220-SEC-K9 | Security License for ISR 4221 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-SL-4220-SEC-K9 | ISR 4221 Security Technology Package License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-SL-4220-SEC-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4221 Security Technology Package License\u003c\/strong\u003e — the software upgrade that enables enterprise-grade security features on the Cisco ISR 4221 Integrated Services Router. This \u003cstrong\u003eCisco ISR 4221 SEC license\u003c\/strong\u003e activates Zone-Based Firewall (ZBFW), IPsec VPN with IKEv2, and integrated threat defense capabilities, making it the essential upgrade for small branch and remote-site deployments that need secure WAN connectivity with firewall and VPN on a cost-effective platform.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eSL-4220-SEC-K9\u003c\/strong\u003e or \u003cstrong\u003eL-SL-4220-SEC-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4221 Security license\u003c\/strong\u003e is a perpetual IOS XE Smart License that transforms the entry-level ISR 4221 into a unified security platform. The license enables \u003cstrong\u003eZone-Based Policy Firewall\u003c\/strong\u003e for stateful packet inspection and per-zone security policies, \u003cstrong\u003eIKEv2\/IPsec VPN\u003c\/strong\u003e for standards-based encrypted site-to-site and remote-access tunnels, \u003cstrong\u003eGET VPN\u003c\/strong\u003e for any-to-any encrypted group communications, and \u003cstrong\u003eSSL VPN\u003c\/strong\u003e for clientless browser-based remote access. Whether you are securing a small retail branch or deploying a managed security CPE, the \u003cstrong\u003eISR 4221 SEC license e-delivery\u003c\/strong\u003e delivers integrated routing and security in a compact, affordable package.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eZone-Based Policy Firewall (ZBFW)\u003c\/strong\u003e — stateful packet inspection with per-zone security policies for granular access control between network segments\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eIKEv2\/IPsec VPN\u003c\/strong\u003e — next-generation key exchange protocol with AES encryption for site-to-site and remote-access VPN tunnels\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eGET VPN\u003c\/strong\u003e — Group Encrypted Transport VPN for any-to-any encrypted group communication without point-to-point tunnel overhead\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eSSL VPN (WebVPN)\u003c\/strong\u003e — clientless browser-based remote access VPN for contractors, partners, and mobile employees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eEasy VPN with FlexVPN\u003c\/strong\u003e — simplified remote-site VPN configuration with IKEv2-based FlexVPN for unified policy-based tunnel setup\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eNetwork Foundation Protection\u003c\/strong\u003e — control-plane policing and secure management plane features for router hardening against DDoS and reconnaissance attacks\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual Smart License\u003c\/strong\u003e — one-time purchase, no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003esmall branch security, managed CPE, and secure remote-site connectivity\u003c\/strong\u003e on the entry-level ISR 4000 platform\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-SL-4220-SEC-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4221\u003c\/strong\u003e Integrated Services Router running IOS XE. Requires IOS XE software version 16.x or later with Smart Licensing enabled. The ISR 4221 base throughput is 35 Mbps aggregate, and IPsec throughput is subject to the base platform limit. For higher crypto throughput, consider the ISR 4321 or higher models with HSEC licensing. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4321 or other ISR 4000 Series models — each platform uses its own license SKU. Please verify your router model before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4221 router to \u003cstrong\u003e\u003ca style=\"color: #0070d2; text-decoration: none;\" href=\"mailto:support@switchlicense.com\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4221 Security technology package license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required .\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e SL-4220-SEC-K9  |  L-SL-4220-SEC-K9  |  SL-4220-SEC-K9=  |  L-SL-4220-SEC-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46945690910940,"sku":"L-SL-4220-SEC-K9","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-SL-4220-SEC-K9.jpg?v=1776688415"},{"product_id":"l-fl-4220-perf-k9","title":"Cisco L-FL-4220-PERF-K9 | Performance License (35M to 75M) for ISR 4221 E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-FL-4220-PERF-K9 | ISR 4221 Performance Throughput License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-FL-4220-PERF-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4221 Performance (PERF) Throughput License\u003c\/strong\u003e — the essential upgrade that doubles the aggregate throughput of the Cisco ISR 4221 Integrated Services Router from 35 Mbps to 75 Mbps. This \u003cstrong\u003eCisco ISR 4221 performance license\u003c\/strong\u003e unlocks the next throughput tier on the entry-level ISR 4000 platform, making it the ideal upgrade for growing branch deployments that need more WAN bandwidth headroom without replacing the router hardware.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eFL-4220-PERF-K9\u003c\/strong\u003e or \u003cstrong\u003eL-FL-4220-PERF-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4221 throughput upgrade license\u003c\/strong\u003e is a perpetual feature license that removes the base 35 Mbps aggregate throughput limit and raises it to 75 Mbps. The PERF license is a \u003cstrong\u003eprerequisite for the BOOST license\u003c\/strong\u003e (FL-4220-BOOST-K9), which further increases throughput. Unlike technology packages (APP\/SEC), the PERF license does not add features — it purely increases the platform throughput ceiling. As a \u003cstrong\u003eCisco ISR 4000 performance license\u003c\/strong\u003e, it is applied via Smart Licensing on IOS XE. Whether you are upgrading bandwidth at a small branch or preparing for future growth, the \u003cstrong\u003eISR 4221 PERF license e-delivery\u003c\/strong\u003e doubles your router's capacity instantly — no hardware upgrade needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eDoubles aggregate throughput\u003c\/strong\u003e — raises the ISR 4221 platform limit from 35 Mbps to 75 Mbps aggregate (combined ingress + egress)\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eSoftware-based throughput unlock\u003c\/strong\u003e — no hardware module or physical upgrade required; activated entirely through Smart Licensing\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePrerequisite for BOOST license\u003c\/strong\u003e — the FL-4220-BOOST-K9 license requires PERF to be installed first; BOOST further raises throughput beyond 75 Mbps\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eApplies to all traffic\u003c\/strong\u003e — increased throughput covers routing, firewall, VPN, and application services running on the platform\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eNo feature changes\u003c\/strong\u003e — purely a throughput upgrade; technology features remain governed by APP\/SEC\/UC licenses\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual license\u003c\/strong\u003e — one-time purchase, no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eE-Delivery\u003c\/strong\u003e — license entitlement delivered electronically, fast activation with no shipping delay\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003egrowing branch deployments, bandwidth upgrades, and preparing for BOOST\u003c\/strong\u003e on the ISR 4221 platform\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-FL-4220-PERF-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4221\u003c\/strong\u003e Integrated Services Router running IOS XE. Requires IOS XE software version 16.x or later with Smart Licensing enabled. \u003cstrong\u003eThroughput tiers:\u003c\/strong\u003e Base = 35 Mbps → PERF = 75 Mbps → PERF + BOOST = maximum platform throughput. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4321 or other ISR 4000 Series models — each platform uses its own performance license SKU (e.g., FL-4320-PERF-K9 for ISR 4321). Please verify your router model before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4221 router to \u003cstrong\u003e\u003ca style=\"color: #0070d2; text-decoration: none;\" href=\"mailto:support@switchlicense.com\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4221 Performance throughput license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required \u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e FL-4220-PERF-K9  |  L-FL-4220-PERF-K9  |  FL-4220-PERF-K9=  |  L-FL-4220-PERF-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46945693991132,"sku":"L-FL-4220-PERF-K9","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-FL-4220-PERF-K9.jpg?v=1776688438"},{"product_id":"l-fl-4220-boost-k9","title":"Cisco L-FL-4220-BOOST-K9 | Boost License for ISR 4221 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-FL-4220-BOOST-K9 | ISR 4221 Boost Throughput License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-FL-4220-BOOST-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4221 Boost Throughput License\u003c\/strong\u003e — the top-tier upgrade that raises the aggregate throughput of the Cisco ISR 4221 Integrated Services Router to its maximum capacity beyond 75 Mbps. This \u003cstrong\u003eCisco ISR 4221 boost license\u003c\/strong\u003e activates the highest throughput tier on the entry-level ISR 4000 platform, making it the essential final upgrade for branch deployments that have maxed out the PERF license and need the platform's full hardware performance potential.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eFL-4220-BOOST-K9\u003c\/strong\u003e or \u003cstrong\u003eL-FL-4220-BOOST-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4221 throughput boost license\u003c\/strong\u003e is a perpetual feature license that takes the platform beyond the PERF (75 Mbps) tier to its maximum rated throughput. The BOOST license \u003cstrong\u003erequires the PERF license (FL-4220-PERF-K9) as a prerequisite\u003c\/strong\u003e — both licenses work together to unlock the full hardware capacity of the ISR 4221. Unlike technology packages (APP\/SEC), the BOOST license does not add features — it purely increases the aggregate throughput ceiling. As a \u003cstrong\u003eCisco ISR 4000 Boost license\u003c\/strong\u003e, it is applied via Smart Licensing on IOS XE. Whether you are saturating a high-speed broadband link or running multiple services concurrently, the \u003cstrong\u003eISR 4221 BOOST license e-delivery\u003c\/strong\u003e ensures your router operates at its maximum rated throughput.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eMaximum platform throughput\u003c\/strong\u003e — raises the ISR 4221 to its highest rated aggregate throughput tier beyond the PERF license level\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eRequires PERF license\u003c\/strong\u003e — the FL-4220-PERF-K9 must be installed as a prerequisite; BOOST cannot be applied to a base (35 Mbps) license tier\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eSoftware-based throughput unlock\u003c\/strong\u003e — no hardware module or physical upgrade required; activated entirely through Smart Licensing\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eApplies to all traffic types\u003c\/strong\u003e — increased throughput covers routing, firewall, VPN, and concurrent application services\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eNo feature changes\u003c\/strong\u003e — purely a throughput upgrade; technology features remain governed by APP\/SEC licenses\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual license\u003c\/strong\u003e — one-time purchase,  no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eE-Delivery\u003c\/strong\u003e — license entitlement delivered electronically, fast activation with no shipping delay\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003ehigh-bandwidth branch WAN links, concurrent service workloads, and maximizing ISR 4221 investment\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-FL-4220-BOOST-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4221\u003c\/strong\u003e Integrated Services Router running IOS XE. \u003cstrong\u003eRequires the PERF license (FL-4220-PERF-K9) as a prerequisite.\u003c\/strong\u003e Requires IOS XE software version 16.x or later with Smart Licensing enabled. \u003cstrong\u003eThroughput tiers:\u003c\/strong\u003e Base = 35 Mbps → PERF = 75 Mbps → PERF + BOOST = maximum platform throughput. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4321 or other ISR 4000 Series models — each platform uses its own Boost license SKU. Please verify your router model and current license state before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4221 router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4221 Boost throughput license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e FL-4220-BOOST-K9  |  L-FL-4220-BOOST-K9  |  FL-4220-BOOST-K9=  |  L-FL-4220-BOOST-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46945695826140,"sku":"L-FL-4220-BOOST-K9","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-FL-4220-BOOST-K9.jpg?v=1776688464"},{"product_id":"l-sl-4320-sec-k9","title":"Cisco L-SL-4320-SEC-K9 | Security License for ISR 4321 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-SL-4320-SEC-K9 | ISR 4321 Security Technology Package License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-SL-4320-SEC-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4321 Security Technology Package License\u003c\/strong\u003e — the comprehensive security feature set for the Cisco ISR 4321 Integrated Services Router. This \u003cstrong\u003eCisco ISR 4321 SEC license\u003c\/strong\u003e activates Zone-Based Firewall (ZBFW), IPsec VPN with IKEv2, DMVPN, GET VPN, Easy VPN with FlexVPN, and SSL VPN, making it the essential upgrade for mid-size branch and regional hub deployments that require enterprise-grade threat protection and secure site-to-site connectivity on the ISR 4000 platform.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eSL-4320-SEC-K9\u003c\/strong\u003e or \u003cstrong\u003eL-SL-4320-SEC-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4321 Security license\u003c\/strong\u003e is a perpetual IOS XE Smart License that transforms the ISR 4321 into a full-featured secure WAN platform. The license includes \u003cstrong\u003eZone-Based Policy Firewall\u003c\/strong\u003e for granular inter-zone traffic control, \u003cstrong\u003eIKEv2\/IPsec VPN\u003c\/strong\u003e for next-generation encrypted tunneling, \u003cstrong\u003eDMVPN\u003c\/strong\u003e for dynamic hub-and-spoke VPN fabrics, \u003cstrong\u003eGET VPN\u003c\/strong\u003e for any-to-any group encryption, \u003cstrong\u003eFlexVPN\u003c\/strong\u003e for unified IKEv2-based policy-driven VPN, \u003cstrong\u003eSSL VPN\u003c\/strong\u003e for clientless remote access, and \u003cstrong\u003eNetwork Foundation Protection\u003c\/strong\u003e for control-plane hardening. For maximum crypto throughput and unlimited tunnels, pair with the \u003cstrong\u003eFL-4320-HSEC-K9\u003c\/strong\u003e license. Whether you are securing a regional WAN hub or building an encrypted multi-site network, the \u003cstrong\u003eISR 4321 SEC license e-delivery\u003c\/strong\u003e provides complete security integration in software.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eZone-Based Policy Firewall (ZBFW)\u003c\/strong\u003e — stateful packet inspection with per-zone security policies for granular inter-segment traffic control\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eIKEv2\/IPsec VPN\u003c\/strong\u003e — next-generation key exchange protocol with AES-GCM encryption for high-performance site-to-site and remote-access tunnels\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eDMVPN and FlexVPN\u003c\/strong\u003e — Dynamic Multipoint VPN for hub-and-spoke fabrics and FlexVPN for unified IKEv2-based policy-driven tunnel configuration\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eGET VPN\u003c\/strong\u003e — Group Encrypted Transport VPN for any-to-any encrypted group communication without point-to-point tunnel overhead\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eSSL VPN (WebVPN)\u003c\/strong\u003e — clientless browser-based remote access VPN for contractors, partners, and mobile users with flexible access policies\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eNetwork Foundation Protection\u003c\/strong\u003e — control-plane policing, CPU\/memory thresholding, and secure management plane for DDoS and reconnaissance defense\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual License\u003c\/strong\u003e — one-time purchase, no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003emid-size branch security, regional WAN hubs, and multi-site encrypted WAN\u003c\/strong\u003e on the ISR 4000 platform\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-SL-4320-SEC-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4321\u003c\/strong\u003e Integrated Services Router running IOS XE. Requires IOS XE software version 16.x or later with Smart Licensing enabled. The base platform throughput is 50 Mbps; for higher crypto throughput and unlimited IPsec tunnels, pair with the \u003cstrong\u003eFL-4320-HSEC-K9\u003c\/strong\u003e High Security license. For higher aggregate throughput, add the \u003cstrong\u003eFL-4320-PERF-K9\u003c\/strong\u003e (100 Mbps) and \u003cstrong\u003eFL-4320-BOOST-K9\u003c\/strong\u003e licenses. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4221 or other ISR 4000 Series models. Please verify your router model before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4321 router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4321 Security technology package license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required .\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e SL-4320-SEC-K9  |  L-SL-4320-SEC-K9  |  SL-4320-SEC-K9=  |  L-SL-4320-SEC-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46953915908316,"sku":"L-SL-4320-SEC-K9","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-SL-4320-SEC-K9.jpg?v=1776688485"},{"product_id":"l-sl-4320-uc-k9","title":"Cisco L-SL-4320-UC-K9 | UC (Voice) License for ISR 4321 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-SL-4320-UC-K9 | ISR 4321 Unified Communications Technology Package License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-SL-4320-UC-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4321 Unified Communications Technology Package License\u003c\/strong\u003e — the complete voice and collaboration feature set for the Cisco ISR 4321 Integrated Services Router. This \u003cstrong\u003eCisco ISR 4321 UC license\u003c\/strong\u003e unlocks TDM\/PSTN gateway capabilities, voice conferencing, codec transcoding, FAX services (T.37\/T.38), and Call Admission Control (CAC), making it the essential upgrade for mid-size branch and campus deployments that need a high-quality IP-PBX and PSTN integration platform with the performance of IOS XE.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eSL-4320-UC-K9\u003c\/strong\u003e or \u003cstrong\u003eL-SL-4320-UC-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4321 UC license\u003c\/strong\u003e is a perpetual IOS XE Smart License that upgrades the ISR 4321 to a full-featured voice gateway. The license includes feature add-ons for \u003cstrong\u003eCisco Unified Communications Manager Express (CME)\u003c\/strong\u003e for local IP-PBX call control, \u003cstrong\u003eSurvivable Remote Site Telephony (SRST)\u003c\/strong\u003e for WAN outage resilience, \u003cstrong\u003eCisco Unified Border Element (CUBE)\u003c\/strong\u003e for enterprise SIP trunk termination and protocol normalization, \u003cstrong\u003eGatekeeper\u003c\/strong\u003e for H.323 call routing, and \u003cstrong\u003eVXML\/IVR\u003c\/strong\u003e for interactive voice response applications. \u003cstrong\u003eDSP modules (PVDM4)\u003c\/strong\u003e are required for voice processing — the UC license enables the software features; DSPs provide the media processing hardware. Whether you are building a mid-size branch PBX or connecting a regional office to a centralized CUCM cluster, the \u003cstrong\u003eISR 4321 UC license e-delivery\u003c\/strong\u003e delivers enterprise voice on the ISR 4000 platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eTDM\/PSTN Gateway\u003c\/strong\u003e — connect legacy PSTN trunks (FXO\/FXS\/T1\/E1\/PRI\/BRI) to your VoIP network with full protocol interworking\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eCisco CME and SRST\u003c\/strong\u003e — built-in IP-PBX (CME) for local call control and Survivable Remote Site Telephony (SRST) for WAN outage resilience\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eCisco Unified Border Element (CUBE)\u003c\/strong\u003e — enterprise session border controller for SIP trunk termination, protocol normalization, and inter-domain peering\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eVoice conferencing and codec transcoding\u003c\/strong\u003e — multi-party audio conferencing and real-time codec conversion between G.711, G.729, iLBC, and more\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eFAX T.37\/T.38 and modem passthrough\u003c\/strong\u003e — reliable fax over IP (FoIP) with T.38 real-time relay and T.37 store-and-forward fax for enterprise workflows\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eCAC and QoS for voice\u003c\/strong\u003e — Call Admission Control and advanced QoS policies ensure toll-quality voice even under congested WAN conditions\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePermanent License\u003c\/strong\u003e — one-time purchase, no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003emid-size branch PBX, SIP trunking, and regional voice hub\u003c\/strong\u003e deployments on the ISR 4000 platform\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-SL-4320-UC-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4321\u003c\/strong\u003e Integrated Services Router running IOS XE. Requires IOS XE software version 16.x or later with Smart Licensing enabled. \u003cstrong\u003eDSP modules (PVDM4)\u003c\/strong\u003e are required for voice gateway, conferencing, and transcoding functions — the UC license enables the software; DSPs provide the media processing hardware. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4221 (no UC support on that model) or other ISR 4000 Series models. Please verify your router model and DSP configuration before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4321 router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4321 Unified Communications technology package license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required .\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e SL-4320-UC-K9  |  L-SL-4320-UC-K9  |  SL-4320-UC-K9=  |  L-SL-4320-UC-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46953917251804,"sku":"L-SL-4320-UC-K9","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-SL-4320-UC-K9.jpg?v=1776688506"},{"product_id":"l-sl-4320-app-k9","title":"Cisco L-SL-4320-APP-K9 | AppX License for ISR 4321 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-SL-4320-APP-K9 | ISR 4321 Application Experience (AppX) Technology Package License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-SL-4320-APP-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4321 Application Experience (AppX) Technology Package License\u003c\/strong\u003e — the complete application visibility and intelligent path control feature set for the Cisco ISR 4321 Integrated Services Router. This \u003cstrong\u003eCisco ISR 4321 APP license\u003c\/strong\u003e activates NBAR2 deep packet inspection for over 1,400 applications, Application Visibility \u0026amp; Control (AVC), Performance Routing v3 (PfRv3), WAAS Express WAN optimization, and IP SLA, making it the ideal upgrade for mid-size branch and regional hub deployments that require application-aware SD-WAN intelligence with WAN optimization on a single IOS XE platform.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eSL-4320-APP-K9\u003c\/strong\u003e or \u003cstrong\u003eL-SL-4320-APP-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4321 AppX license\u003c\/strong\u003e is a perpetual IOS XE Smart License that brings enterprise-grade application intelligence to the ISR 4000 platform. The license enables \u003cstrong\u003eNBAR2 application recognition\u003c\/strong\u003e for granular traffic classification, \u003cstrong\u003eAVC\u003c\/strong\u003e for per-application QoS, bandwidth control, and real-time traffic dashboards, \u003cstrong\u003ePfRv3\u003c\/strong\u003e for intelligent WAN path selection based on real-time performance metrics, \u003cstrong\u003eWAAS Express\u003c\/strong\u003e for TCP optimization, data redundancy elimination, and LZ compression over WAN links, and \u003cstrong\u003eIP SLA\u003c\/strong\u003e for proactive link health monitoring. \u003cstrong\u003eDoes NOT include SEC features\u003c\/strong\u003e — firewall and VPN require a separate SEC license. Whether you are building an SD-WAN edge with application-aware routing or optimizing SaaS performance for a regional hub, the \u003cstrong\u003eISR 4321 APP license e-delivery\u003c\/strong\u003e provides complete application visibility and WAN optimization.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eNBAR2 Deep Packet Inspection\u003c\/strong\u003e — classifies over 1,400 applications including SaaS, web, collaboration, and custom enterprise applications\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eApplication Visibility \u0026amp; Control (AVC)\u003c\/strong\u003e — per-application QoS policies, bandwidth control, traffic shaping, and real-time monitoring dashboards\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerformance Routing v3 (PfRv3)\u003c\/strong\u003e — intelligent WAN path selection based on real-time metrics: jitter, packet loss, delay, and MOS score\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eWAAS Express\u003c\/strong\u003e — TCP optimization, data redundancy elimination (DRE), and LZ compression reduce WAN bandwidth consumption by up to 70%\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eIP SLA\u003c\/strong\u003e — proactive network performance monitoring with synthetic traffic generation for WAN link health measurement and SLA reporting\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eDoes NOT include SEC features\u003c\/strong\u003e — Zone-Based Firewall and IPsec VPN require separate SEC license; APP covers visibility + optimization only\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual License\u003c\/strong\u003e — one-time purchase,no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003emid-size branch SD-WAN, SaaS performance optimization, and application-aware routing\u003c\/strong\u003e on the ISR 4000 platform\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-SL-4320-APP-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4321\u003c\/strong\u003e Integrated Services Router running IOS XE. Requires IOS XE software version 16.x or later with Smart Licensing enabled. \u003cstrong\u003eWAAS Express requires a DRAM upgrade\u003c\/strong\u003e to the maximum supported memory for the ISR 4321. For higher aggregate throughput, add the \u003cstrong\u003eFL-4320-PERF-K9\u003c\/strong\u003e (100 Mbps) and \u003cstrong\u003eFL-4320-BOOST-K9\u003c\/strong\u003e licenses. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4221 or other ISR 4000 Series models. Please verify your router model before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4321 router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4321 Application Experience technology package license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required .\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e SL-4320-APP-K9  |  L-SL-4320-APP-K9  |  SL-4320-APP-K9=  |  L-SL-4320-APP-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46953917972700,"sku":"L-SL-4320-APP-K9","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-SL-4320-APP-K9.jpg?v=1776688531"},{"product_id":"l-fl-4320-perf-k9","title":"Cisco L-FL-4320-PERF-K9 | Performance License (50M to 100M) | 4321","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-FL-4320-PERF-K9 | ISR 4321 Performance Throughput License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-FL-4320-PERF-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4321 Performance (PERF) Throughput License\u003c\/strong\u003e — the essential upgrade that doubles the aggregate throughput of the Cisco ISR 4321 Integrated Services Router from 50 Mbps to 100 Mbps. This \u003cstrong\u003eCisco ISR 4321 performance license\u003c\/strong\u003e unlocks the next throughput tier on the mid-range ISR 4000 platform, making it the ideal upgrade for growing branch and regional hub deployments that need more WAN bandwidth headroom for concurrent routing, security, and application services.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eFL-4320-PERF-K9\u003c\/strong\u003e or \u003cstrong\u003eL-FL-4320-PERF-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4321 throughput upgrade license\u003c\/strong\u003e is a perpetual feature license that removes the base 50 Mbps aggregate throughput limit and raises it to 100 Mbps. The PERF license is a \u003cstrong\u003eprerequisite for the BOOST license\u003c\/strong\u003e (FL-4320-BOOST-K9), which further increases throughput to approximately 200 Mbps or more. Unlike technology packages (APP\/SEC\/UC), the PERF license does not add features — it purely increases the platform throughput ceiling across all services including routing, firewall, VPN, and application optimization. As a \u003cstrong\u003eCisco ISR 4000 performance license\u003c\/strong\u003e, it is applied via Smart Licensing on IOS XE. Whether you are upgrading from a 50 Mbps WAN link or preparing for SD-WAN services that demand higher throughput, the \u003cstrong\u003eISR 4321 PERF license e-delivery\u003c\/strong\u003e doubles your router's capacity instantly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eDoubles aggregate throughput\u003c\/strong\u003e — raises the ISR 4321 platform limit from 50 Mbps to 100 Mbps aggregate (combined ingress + egress)\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eSoftware-based throughput unlock\u003c\/strong\u003e — no hardware module or physical upgrade required; activated entirely through Smart Licensing\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePrerequisite for BOOST license\u003c\/strong\u003e — the FL-4320-BOOST-K9 license requires PERF to be installed first; BOOST further raises throughput to ~200 Mbps\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eApplies to all services\u003c\/strong\u003e — increased throughput covers routing, firewall, VPN, voice, and application optimization workloads\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eNo feature changes\u003c\/strong\u003e — purely a throughput upgrade; technology features remain governed by APP\/SEC\/UC licenses\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual license\u003c\/strong\u003e — one-time purchase, no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eE-Delivery\u003c\/strong\u003e — license entitlement delivered electronically, fast activation with no shipping delay\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003egrowing mid-size branches, multi-service WAN hubs, and preparing for BOOST\u003c\/strong\u003e on the ISR 4321 platform\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-FL-4320-PERF-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4321\u003c\/strong\u003e Integrated Services Router running IOS XE. Requires IOS XE software version 16.x or later with Smart Licensing enabled. \u003cstrong\u003eThroughput tiers:\u003c\/strong\u003e Base = 50 Mbps → PERF = 100 Mbps → PERF + BOOST = ~200+ Mbps. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4221 or other ISR 4000 Series models — each platform uses its own performance license SKU. Please verify your router model before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4321 router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4321 Performance throughput license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required .\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e FL-4320-PERF-K9  |  L-FL-4320-PERF-K9  |  FL-4320-PERF-K9=  |  L-FL-4320-PERF-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46953919185116,"sku":"L-FL-4320-PERF-K9","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-FL-4320-PERF-K9.jpg?v=1776688551"},{"product_id":"l-fl-4320-hsec-k9","title":"Cisco L-FL-4320-HSEC-K9 | High Security License for 4321 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-FL-4320-HSEC-K9 | ISR 4321 High Security (HSEC) Feature License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-FL-4320-HSEC-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4321 High Security (HSEC) Feature License\u003c\/strong\u003e — the critical upgrade that removes export-restricted crypto throughput caps and enables unlimited IPsec tunnel capacity on the Cisco ISR 4321 Integrated Services Router. This \u003cstrong\u003eCisco ISR 4321 HSEC license\u003c\/strong\u003e unlocks the full hardware crypto engine performance of the ISR 4321, eliminating the default tunnel count and throughput limitations imposed by U.S. export regulations, making it the essential add-on for high-throughput VPN concentrator and secure WAN hub deployments on the ISR 4000 platform.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eFL-4320-HSEC-K9\u003c\/strong\u003e or \u003cstrong\u003eL-FL-4320-HSEC-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4321 HSEC license\u003c\/strong\u003e is a perpetual feature license that requires the \u003cstrong\u003eSEC (securityk9) technology package\u003c\/strong\u003e as a prerequisite. Once activated, the HSEC license removes the default IPsec tunnel cap and export-limited crypto throughput thresholds, enabling the platform to encrypt at its full rated hardware capacity. Without HSEC, the ISR 4321 VPN throughput is limited to the export-controlled default level. As a \u003cstrong\u003eCisco ISR 4000 high security feature license\u003c\/strong\u003e, it is supported on the ISR 4321 (and all higher ISR 4000 models with their respective HSEC SKUs) and requires IOS XE with Smart Licensing. Whether you are aggregating branch VPN tunnels or building an encrypted regional WAN backbone, the \u003cstrong\u003eISR 4321 HSEC license e-delivery\u003c\/strong\u003e ensures your router encrypts at its full potential.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eRemoves crypto throughput cap\u003c\/strong\u003e — unlocks full hardware crypto engine performance, eliminating export-restricted encryption throughput limits\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eUnlimited IPsec tunnel capacity\u003c\/strong\u003e — removes the default tunnel count limit, enabling the platform to support its full rated tunnel capacity\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eRequires SEC (securityk9) license\u003c\/strong\u003e — the HSEC feature license is an add-on that augments the Security technology package; SEC must be installed first\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eExclusive to ISR 4321\u003c\/strong\u003e — not compatible with ISR 4221; for higher ISR 4000 models, use the respective HSEC SKU for that platform\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eWorks with aggregate throughput licenses\u003c\/strong\u003e — combines with PERF and BOOST licenses for maximum encrypted throughput on high-speed WAN links\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual license\u003c\/strong\u003e — one-time purchase, no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eE-Delivery\u003c\/strong\u003e — license entitlement delivered electronically, fast activation with no shipping delay\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003eregional VPN hubs, DMVPN head-ends, and high-throughput encrypted WAN\u003c\/strong\u003e requiring full crypto performance on ISR 4321\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-FL-4320-HSEC-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4321\u003c\/strong\u003e Integrated Services Router running IOS XE. Requires the \u003cstrong\u003eSEC (securityk9) technology package license\u003c\/strong\u003e as a prerequisite. Requires IOS XE software version 16.x or later with Smart Licensing enabled. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4221 (no HSEC support on that model). For higher ISR 4000 models (4331 and above), use the respective HSEC SKU for that platform. Please verify your router model and current license state before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4321 router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4321 High Security feature license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required .\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e FL-4320-HSEC-K9  |  L-FL-4320-HSEC-K9  |  FL-4320-HSEC-K9=  |  L-FL-4320-HSEC-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46953920168156,"sku":"L-FL-4320-HSEC-K9","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-FL-4320-HSEC-K9.jpg?v=1776688570"},{"product_id":"l-fl-4320-boost-k9","title":"Cisco L-FL-4320-BOOST-K9 | Boost License for ISR 4321 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-FL-4320-BOOST-K9 | ISR 4321 Boost Throughput License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-FL-4320-BOOST-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4321 Boost Throughput License\u003c\/strong\u003e — the top-tier upgrade that raises the aggregate throughput of the Cisco ISR 4321 Integrated Services Router to approximately 200 Mbps or more. This \u003cstrong\u003eCisco ISR 4321 boost license\u003c\/strong\u003e activates the highest throughput tier on the mid-range ISR 4000 platform, making it the essential final upgrade for multi-service branch and regional hub deployments that have maxed out the PERF license and need the platform's full hardware performance potential for concurrent routing, security, voice, and application services.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eFL-4320-BOOST-K9\u003c\/strong\u003e or \u003cstrong\u003eL-FL-4320-BOOST-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4321 throughput boost license\u003c\/strong\u003e is a perpetual feature license that takes the platform beyond the PERF (100 Mbps) tier to its maximum rated aggregate throughput. The BOOST license \u003cstrong\u003erequires the PERF license (FL-4320-PERF-K9) as a prerequisite\u003c\/strong\u003e — both licenses work together to unlock the full hardware capacity of the ISR 4321. Unlike technology packages (APP\/SEC\/UC), the BOOST license does not add features — it purely increases the aggregate throughput ceiling across all workloads. As a \u003cstrong\u003eCisco ISR 4000 Boost license\u003c\/strong\u003e, it is applied via Smart Licensing on IOS XE. Whether you are running a high-speed broadband WAN link, supporting concurrent voice and video, or deploying SD-WAN with full application optimization, the \u003cstrong\u003eISR 4321 BOOST license e-delivery\u003c\/strong\u003e ensures your router operates at its maximum rated performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eMaximum platform throughput\u003c\/strong\u003e — raises the ISR 4321 to its highest rated aggregate throughput tier (~200+ Mbps) beyond the PERF (100 Mbps) level\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eRequires PERF license\u003c\/strong\u003e — the FL-4320-PERF-K9 must be installed as a prerequisite; BOOST cannot be applied to the base (50 Mbps) license tier\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eSoftware-based throughput unlock\u003c\/strong\u003e — no hardware module or physical upgrade required; activated entirely through Smart Licensing\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eApplies to all workloads\u003c\/strong\u003e — increased throughput covers concurrent routing, firewall inspection, VPN encryption, voice DSP, and application optimization\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eNo feature changes\u003c\/strong\u003e — purely a throughput upgrade; technology features remain governed by APP\/SEC\/UC licenses\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eCombines with HSEC\u003c\/strong\u003e — use with FL-4320-HSEC-K9 to achieve maximum encrypted throughput for VPN-heavy deployments\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual license\u003c\/strong\u003e — one-time purchase, no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003ehigh-speed WAN links, multi-service regional hubs, and maximizing ISR 4321 investment\u003c\/strong\u003e for SD-WAN and concurrent workloads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-FL-4320-BOOST-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4321\u003c\/strong\u003e Integrated Services Router running IOS XE. \u003cstrong\u003eRequires the PERF license (FL-4320-PERF-K9) as a prerequisite.\u003c\/strong\u003e Requires IOS XE software version 16.x or later with Smart Licensing enabled. \u003cstrong\u003eThroughput tiers:\u003c\/strong\u003e Base = 50 Mbps → PERF = 100 Mbps → PERF + BOOST = ~200+ Mbps. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4221 or other ISR 4000 Series models — each platform uses its own Boost license SKU. Please verify your router model and current license state before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4321 router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4321 Boost throughput license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required .\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e FL-4320-BOOST-K9  |  L-FL-4320-BOOST-K9  |  FL-4320-BOOST-K9=  |  L-FL-4320-BOOST-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46953921413340,"sku":"L-FL-4320-BOOST-K9","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-FL-4320-BOOST-K9.jpg?v=1776688591"},{"product_id":"l-sl-4330-sec-k9","title":"Cisco L-SL-4330-SEC-K9 Security License for Cisco ISR 4330 Series E-delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-SL-4330-SEC-K9 | ISR 4331 Security Technology Package License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-SL-4330-SEC-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4331 Security Technology Package License\u003c\/strong\u003e — the comprehensive security feature set for the Cisco ISR 4331 Integrated Services Router. This \u003cstrong\u003eCisco ISR 4331 SEC license\u003c\/strong\u003e activates Zone-Based Firewall (ZBFW), IPsec VPN with IKEv2, DMVPN, GET VPN, FlexVPN, and SSL VPN with higher throughput headroom than the 4321 platform, making it the essential upgrade for large branch and regional hub deployments that require enterprise-grade threat protection with room to scale on the ISR 4000 platform.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eSL-4330-SEC-K9\u003c\/strong\u003e or \u003cstrong\u003eL-SL-4330-SEC-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4331 Security license\u003c\/strong\u003e is a perpetual IOS XE Smart License that transforms the ISR 4331 into a full-featured secure WAN platform with 100 Mbps base throughput. The license includes \u003cstrong\u003eZone-Based Policy Firewall\u003c\/strong\u003e for granular inter-zone traffic control, \u003cstrong\u003eIKEv2\/IPsec VPN\u003c\/strong\u003e for next-generation encrypted tunneling, \u003cstrong\u003eDMVPN\u003c\/strong\u003e for dynamic hub-and-spoke VPN fabrics, \u003cstrong\u003eGET VPN\u003c\/strong\u003e for any-to-any group encryption, \u003cstrong\u003eFlexVPN\u003c\/strong\u003e for unified IKEv2-based policy-driven VPN, \u003cstrong\u003eSSL VPN\u003c\/strong\u003e for clientless remote access, and \u003cstrong\u003eNetwork Foundation Protection\u003c\/strong\u003e for control-plane hardening. For maximum crypto throughput and unlimited tunnels, pair with the \u003cstrong\u003eFL-4330-HSEC-K9\u003c\/strong\u003e license. Whether you are securing a large branch WAN edge or building an encrypted multi-site network, the \u003cstrong\u003eISR 4331 SEC license e-delivery\u003c\/strong\u003e provides complete security integration on a higher-performance platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eZone-Based Policy Firewall (ZBFW)\u003c\/strong\u003e — stateful packet inspection with per-zone security policies for granular inter-segment traffic control\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eIKEv2\/IPsec VPN with AES-GCM\u003c\/strong\u003e — next-generation key exchange with hardware-accelerated AES-GCM encryption for high-performance VPN tunnels\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eDMVPN and FlexVPN\u003c\/strong\u003e — Dynamic Multipoint VPN for hub-and-spoke fabrics and FlexVPN for unified IKEv2-based policy-driven configuration\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eGET VPN\u003c\/strong\u003e — Group Encrypted Transport VPN for any-to-any encrypted group communication without point-to-point tunnel overhead\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eSSL VPN (WebVPN)\u003c\/strong\u003e — clientless browser-based remote access VPN for contractors, partners, and mobile users at higher concurrency\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eNetwork Foundation Protection\u003c\/strong\u003e — control-plane policing, CPU\/memory thresholding, and secure management plane for comprehensive DDoS defense\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual License\u003c\/strong\u003e — one-time purchase, no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003elarge branch security, regional WAN hubs, and high-throughput encrypted WAN\u003c\/strong\u003e on the ISR 4331 platform\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-SL-4330-SEC-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4331\u003c\/strong\u003e Integrated Services Router running IOS XE. Requires IOS XE software version 16.x or later with Smart Licensing enabled. Base throughput is 100 Mbps; for higher crypto throughput and unlimited IPsec tunnels, pair with \u003cstrong\u003eFL-4330-HSEC-K9\u003c\/strong\u003e. For higher aggregate throughput, add \u003cstrong\u003eFL-4330-PERF-K9\u003c\/strong\u003e (300 Mbps) and \u003cstrong\u003eFL-4330-BOOST-K9\u003c\/strong\u003e. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4221, ISR 4321, or ISR 4351 — each platform requires its own license SKU. Please verify your router model before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4331 router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4331 Security technology package license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required .\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e SL-4330-SEC-K9  |  L-SL-4330-SEC-K9  |  SL-4330-SEC-K9=  |  L-SL-4330-SEC-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46957477232860,"sku":"L-SL-4330-SEC-K9","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-SL-4330-SEC-K9.jpg?v=1776688611"},{"product_id":"l-sl-4330-uc-k9","title":"Cisco L-SL-4330-UC-K9 Unified Communication License for Cisco ISR 4330 Series","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-SL-4330-UC-K9 | ISR 4331 Unified Communications Technology Package License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-SL-4330-UC-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4331 Unified Communications Technology Package License\u003c\/strong\u003e — the complete voice and collaboration feature set for the Cisco ISR 4331 Integrated Services Router. This \u003cstrong\u003eCisco ISR 4331 UC license\u003c\/strong\u003e unlocks TDM\/PSTN gateway capabilities, voice conferencing, codec transcoding, FAX services (T.37\/T.38), and Call Admission Control (CAC) with higher session capacity than the 4321, making it the ideal upgrade for large branch and campus deployments that need a high-capacity IP-PBX and PSTN integration platform with room to grow.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eSL-4330-UC-K9\u003c\/strong\u003e or \u003cstrong\u003eL-SL-4330-UC-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4331 UC license\u003c\/strong\u003e is a perpetual IOS XE Smart License that upgrades the ISR 4331 to a full-featured enterprise voice gateway. The license includes feature add-ons for \u003cstrong\u003eCisco Unified Communications Manager Express (CME)\u003c\/strong\u003e for local IP-PBX supporting more phones, \u003cstrong\u003eSurvivable Remote Site Telephony (SRST)\u003c\/strong\u003e for WAN outage resilience, \u003cstrong\u003eCisco Unified Border Element (CUBE)\u003c\/strong\u003e for high-volume enterprise SIP trunk termination, \u003cstrong\u003eGatekeeper\u003c\/strong\u003e for H.323 call routing, and \u003cstrong\u003eVXML\/IVR\u003c\/strong\u003e for interactive voice response. \u003cstrong\u003eDSP modules (PVDM4)\u003c\/strong\u003e are required for voice processing — the UC license enables the software; DSPs provide the media processing. Whether you are building a campus PBX or connecting a regional hub to centralized CUCM, the \u003cstrong\u003eISR 4331 UC license e-delivery\u003c\/strong\u003e delivers enterprise voice at scale.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eTDM\/PSTN Gateway\u003c\/strong\u003e — connect legacy PSTN trunks (FXO\/FXS\/T1\/E1\/PRI\/BRI) to your VoIP network with higher-density interface support\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eCisco CME and SRST\u003c\/strong\u003e — built-in IP-PBX (CME) for large branch call control and Survivable Remote Site Telephony (SRST) for WAN outage resilience\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eCisco Unified Border Element (CUBE)\u003c\/strong\u003e — high-capacity enterprise SBC for SIP trunk termination, protocol normalization, and inter-domain peering\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eVoice conferencing and codec transcoding\u003c\/strong\u003e — high-capacity multi-party conferencing and real-time codec conversion between G.711, G.729, iLBC, and more\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eFAX T.37\/T.38 and modem passthrough\u003c\/strong\u003e — reliable fax over IP (FoIP) with T.38 real-time relay and T.37 store-and-forward for enterprise workflows\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eCAC and QoS for voice\u003c\/strong\u003e — Call Admission Control and advanced QoS policies ensure toll-quality voice even under congested WAN conditions\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual License\u003c\/strong\u003e — one-time purchase,no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003elarge branch PBX, campus voice gateway, and high-capacity SIP trunking\u003c\/strong\u003e on the ISR 4331 platform\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-SL-4330-UC-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4331\u003c\/strong\u003e Integrated Services Router running IOS XE. Requires IOS XE software version 16.x or later with Smart Licensing enabled. \u003cstrong\u003eDSP modules (PVDM4)\u003c\/strong\u003e are required for voice gateway, conferencing, and transcoding functions. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4221, ISR 4321, or ISR 4351 — each platform requires its own license SKU. Please verify your router model and DSP configuration before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4331 router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4331 Unified Communications technology package license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required .\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e SL-4330-UC-K9  |  L-SL-4330-UC-K9  |  SL-4330-UC-K9=  |  L-SL-4330-UC-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46957477527772,"sku":"L-SL-4330-UC-K9","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-SL-4330-UC-K9.jpg?v=1776688634"},{"product_id":"l-sl-4330-app-k9","title":"Cisco L-SL-4330-APP-K9 | AppX License for ISR 4331 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-SL-4330-APP-K9 | ISR 4331 Application Experience (AppX) Technology Package License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-SL-4330-APP-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4331 Application Experience (AppX) Technology Package License\u003c\/strong\u003e — the complete application visibility and intelligent path control feature set for the Cisco ISR 4331 Integrated Services Router. This \u003cstrong\u003eCisco ISR 4331 APP license\u003c\/strong\u003e activates NBAR2 deep packet inspection for over 1,400 applications, Application Visibility \u0026amp; Control (AVC), Performance Routing v3 (PfRv3), WAAS Express WAN optimization, and IP SLA with the throughput headroom to handle concurrent services, making it the ideal upgrade for large branch and regional hub deployments that require application-aware SD-WAN intelligence at scale.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eSL-4330-APP-K9\u003c\/strong\u003e or \u003cstrong\u003eL-SL-4330-APP-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4331 AppX license\u003c\/strong\u003e is a perpetual IOS XE Smart License that brings enterprise-grade application intelligence to the higher-performance ISR 4331 with 100 Mbps base throughput. The license enables \u003cstrong\u003eNBAR2 application recognition\u003c\/strong\u003e for granular traffic classification, \u003cstrong\u003eAVC\u003c\/strong\u003e for per-application QoS, bandwidth control, and real-time dashboards, \u003cstrong\u003ePfRv3\u003c\/strong\u003e for intelligent WAN path selection based on real-time jitter, loss, and MOS metrics, \u003cstrong\u003eWAAS Express\u003c\/strong\u003e for TCP optimization, data redundancy elimination, and LZ compression, and \u003cstrong\u003eIP SLA\u003c\/strong\u003e for proactive link health monitoring. \u003cstrong\u003eDoes NOT include SEC features\u003c\/strong\u003e — firewall and VPN require separate SEC license. Whether you are building an SD-WAN edge for a large branch or optimizing SaaS across a regional hub, the \u003cstrong\u003eISR 4331 APP license e-delivery\u003c\/strong\u003e provides complete application intelligence at higher scale.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eNBAR2 Deep Packet Inspection\u003c\/strong\u003e — classifies over 1,400 applications including SaaS, web, collaboration, and custom enterprise applications\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eApplication Visibility \u0026amp; Control (AVC)\u003c\/strong\u003e — per-application QoS policies, bandwidth control, traffic shaping, and real-time monitoring dashboards\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerformance Routing v3 (PfRv3)\u003c\/strong\u003e — intelligent WAN path selection using real-time metrics: jitter, packet loss, delay, and MOS score across multiple WAN links\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eWAAS Express\u003c\/strong\u003e — TCP optimization, data redundancy elimination (DRE), and LZ compression reduce WAN bandwidth consumption by up to 70%\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eIP SLA\u003c\/strong\u003e — proactive network performance monitoring with synthetic traffic generation for WAN link health measurement and SLA reporting\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eDoes NOT include SEC features\u003c\/strong\u003e — Zone-Based Firewall and IPsec VPN require separate SEC license; APP covers visibility + optimization only\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual License\u003c\/strong\u003e — one-time purchase, no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003elarge branch SD-WAN, regional hub application optimization, and multi-WAN intelligent path selection\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-SL-4330-APP-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4331\u003c\/strong\u003e Integrated Services Router running IOS XE. Requires IOS XE software version 16.x or later with Smart Licensing enabled. \u003cstrong\u003eWAAS Express requires a DRAM upgrade\u003c\/strong\u003e to the maximum supported memory. For higher aggregate throughput, add \u003cstrong\u003eFL-4330-PERF-K9\u003c\/strong\u003e (300 Mbps) and \u003cstrong\u003eFL-4330-BOOST-K9\u003c\/strong\u003e. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4221, ISR 4321, or ISR 4351. Please verify your router model before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4331 router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4331 Application Experience technology package license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required .\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e SL-4330-APP-K9  |  L-SL-4330-APP-K9  |  SL-4330-APP-K9=  |  L-SL-4330-APP-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46957488439516,"sku":"L-SL-4330-APP-K9","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-SL-4330-APP-K9.jpg?v=1776688653"},{"product_id":"l-fl-4330-perf-k9","title":"Cisco L-FL-4330-PERF-K9 | Performance License (100M to 300M) for ISR 4331 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-FL-4330-PERF-K9 | ISR 4331 Performance Throughput License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-FL-4330-PERF-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4331 Performance (PERF) Throughput License\u003c\/strong\u003e — the essential upgrade that triples the aggregate throughput of the Cisco ISR 4331 Integrated Services Router from 100 Mbps to 300 Mbps. This \u003cstrong\u003eCisco ISR 4331 performance license\u003c\/strong\u003e unlocks the next throughput tier on the ISR 4000 platform, making it the critical upgrade for large branch and regional hub deployments that need significantly more WAN bandwidth for concurrent routing, security, voice, and application optimization workloads.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eFL-4330-PERF-K9\u003c\/strong\u003e or \u003cstrong\u003eL-FL-4330-PERF-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4331 throughput upgrade license\u003c\/strong\u003e is a perpetual feature license that removes the base 100 Mbps aggregate throughput limit and raises it to 300 Mbps. The PERF license is a \u003cstrong\u003eprerequisite for the BOOST license\u003c\/strong\u003e (FL-4330-BOOST-K9), which further increases throughput to the platform maximum. Unlike technology packages (APP\/SEC\/UC), the PERF license does not add features — it purely increases the platform throughput ceiling across all services. As a \u003cstrong\u003eCisco ISR 4000 performance license\u003c\/strong\u003e, it is applied via Smart Licensing on IOS XE. Whether you are upgrading from a 100 Mbps WAN link or preparing for SD-WAN services at higher throughput, the \u003cstrong\u003eISR 4331 PERF license e-delivery\u003c\/strong\u003e triples your router's capacity instantly — no hardware upgrade needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eTriples aggregate throughput\u003c\/strong\u003e — raises the ISR 4331 platform limit from 100 Mbps to 300 Mbps aggregate (combined ingress + egress)\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eSoftware-based throughput unlock\u003c\/strong\u003e — no hardware module or physical upgrade required; activated entirely through Smart Licensing\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePrerequisite for BOOST license\u003c\/strong\u003e — the FL-4330-BOOST-K9 license requires PERF to be installed first; BOOST raises throughput to the platform maximum\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eApplies to all services\u003c\/strong\u003e — increased throughput covers routing, firewall, VPN encryption, voice DSP, and application optimization concurrently\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eNo feature changes\u003c\/strong\u003e — purely a throughput upgrade; technology features remain governed by APP\/SEC\/UC licenses\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual license\u003c\/strong\u003e — one-time purchase, no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eE-Delivery\u003c\/strong\u003e — license entitlement delivered electronically, fast activation with no shipping delay\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003elarge branch WAN upgrades, multi-service regional hubs, and preparing for BOOST\u003c\/strong\u003e on the ISR 4331 platform\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-FL-4330-PERF-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4331\u003c\/strong\u003e Integrated Services Router running IOS XE. Requires IOS XE software version 16.x or later with Smart Licensing enabled. \u003cstrong\u003eThroughput tiers:\u003c\/strong\u003e Base = 100 Mbps → PERF = 300 Mbps → PERF + BOOST = maximum platform throughput. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4221, ISR 4321, or ISR 4351 — each platform uses its own performance license SKU. Please verify your router model before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4331 router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4331 Performance throughput license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required .\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e FL-4330-PERF-K9  |  L-FL-4330-PERF-K9  |  FL-4330-PERF-K9=  |  L-FL-4330-PERF-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46957507346652,"sku":"L-FL-4330-PERF-K9","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-FL-4330-PERF-K9.jpg?v=1776688675"},{"product_id":"l-fl-4330-hsec-k9","title":"Cisco L-FL-4330-HSEC-K9 | High Security License for 4331 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-FL-4330-HSEC-K9 | ISR 4331 High Security (HSEC) Feature License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-FL-4330-HSEC-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4331 High Security (HSEC) Feature License\u003c\/strong\u003e — the critical upgrade that removes export-restricted crypto throughput caps and enables unlimited IPsec tunnel capacity on the Cisco ISR 4331 Integrated Services Router. This \u003cstrong\u003eCisco ISR 4331 HSEC license\u003c\/strong\u003e unlocks the full hardware crypto engine performance of the higher-end ISR 4331, eliminating the default tunnel count and throughput limitations imposed by U.S. export regulations, making it the essential add-on for high-throughput VPN concentrator and enterprise WAN security hub deployments.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eFL-4330-HSEC-K9\u003c\/strong\u003e or \u003cstrong\u003eL-FL-4330-HSEC-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4331 HSEC license\u003c\/strong\u003e is a perpetual feature license that requires the \u003cstrong\u003eSEC (securityk9) technology package\u003c\/strong\u003e as a prerequisite. Once activated with the 100 Mbps base (or higher with PERF\/BOOST), the HSEC license removes the default IPsec tunnel cap and export-limited crypto thresholds, enabling the platform to encrypt at its full rated hardware capacity. Without HSEC, the ISR 4331 VPN throughput is limited to the export-controlled default. As a \u003cstrong\u003eCisco ISR 4000 high security feature license\u003c\/strong\u003e, it is supported on the ISR 4331 and is compatible with PERF and BOOST licenses for maximum encrypted throughput. Whether you are aggregating hundreds of branch VPN tunnels or building a high-throughput encrypted regional backbone, the \u003cstrong\u003eISR 4331 HSEC license e-delivery\u003c\/strong\u003e ensures your router encrypts at its full potential.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eRemoves crypto throughput cap\u003c\/strong\u003e — unlocks full hardware crypto engine performance, eliminating export-restricted encryption throughput limits on the ISR 4331\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eUnlimited IPsec tunnel capacity\u003c\/strong\u003e — removes the default tunnel count limit, enabling the 4331 to support its full rated IPsec tunnel capacity\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eRequires SEC (securityk9) license\u003c\/strong\u003e — the HSEC feature license is an add-on that augments the Security technology package; SEC must be installed first\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eWorks with throughput licenses\u003c\/strong\u003e — combines with PERF (300 Mbps) and BOOST licenses for maximum encrypted throughput on high-speed WAN links\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eCompatible with all VPN types\u003c\/strong\u003e — applies to IPsec, DMVPN, GET VPN, FlexVPN, and SSL VPN crypto throughput limits\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual license\u003c\/strong\u003e — one-time purchase, no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eE-Delivery\u003c\/strong\u003e — license entitlement delivered electronically, fast activation with no shipping delay\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003eenterprise VPN hubs, large-scale DMVPN head-ends, and regional encrypted WAN aggregation\u003c\/strong\u003e on ISR 4331\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-FL-4330-HSEC-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4331\u003c\/strong\u003e Integrated Services Router running IOS XE. Requires the \u003cstrong\u003eSEC (securityk9) technology package license\u003c\/strong\u003e as a prerequisite. Requires IOS XE software version 16.x or later with Smart Licensing enabled. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4221, ISR 4321, or ISR 4351 — each platform requires its own HSEC SKU. Please verify your router model and current license state before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4331 router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4331 High Security feature license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required .\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e FL-4330-HSEC-K9  |  L-FL-4330-HSEC-K9  |  FL-4330-HSEC-K9=  |  L-FL-4330-HSEC-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46957512196316,"sku":"L-FL-4330-HSEC-K9","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-FL-4330-HSEC-K9.jpg?v=1776688697"},{"product_id":"l-fl-4330-boost-k9","title":"Cisco L-FL-4330-BOOST-K9 | Boost License for ISR 4331 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-FL-4330-BOOST-K9 | ISR 4331 Boost Throughput License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-FL-4330-BOOST-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4331 Boost Throughput License\u003c\/strong\u003e — the top-tier upgrade that raises the aggregate throughput of the Cisco ISR 4331 Integrated Services Router to its maximum rated capacity beyond the 300 Mbps PERF tier. This \u003cstrong\u003eCisco ISR 4331 boost license\u003c\/strong\u003e activates the highest throughput tier on the ISR 4000 platform, making it the essential final upgrade for enterprise branch and regional hub deployments that have maxed out the PERF license and need the platform's full hardware performance for concurrent routing, security, voice, and SD-WAN services.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eFL-4330-BOOST-K9\u003c\/strong\u003e or \u003cstrong\u003eL-FL-4330-BOOST-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4331 throughput boost license\u003c\/strong\u003e is a perpetual feature license that takes the platform beyond the PERF (300 Mbps) tier to its maximum rated aggregate throughput. The BOOST license \u003cstrong\u003erequires the PERF license (FL-4330-PERF-K9) as a prerequisite\u003c\/strong\u003e — both licenses work together to unlock the full hardware capacity of the ISR 4331. Unlike technology packages (APP\/SEC\/UC), the BOOST license does not add features — it purely increases the aggregate throughput ceiling across all workloads. As a \u003cstrong\u003eCisco ISR 4000 Boost license\u003c\/strong\u003e, it is applied via Smart Licensing on IOS XE. Whether you are running a high-speed fiber WAN link, supporting hundreds of concurrent voice and video calls, or deploying SD-WAN with full application optimization, the \u003cstrong\u003eISR 4331 BOOST license e-delivery\u003c\/strong\u003e ensures your router operates at its maximum rated performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eMaximum platform throughput\u003c\/strong\u003e — raises the ISR 4331 to its highest rated aggregate throughput tier beyond the PERF (300 Mbps) level\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eRequires PERF license\u003c\/strong\u003e — the FL-4330-PERF-K9 must be installed as a prerequisite; BOOST cannot be applied to the base (100 Mbps) license tier\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eSoftware-based throughput unlock\u003c\/strong\u003e — no hardware module or physical upgrade required; activated entirely through Smart Licensing\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eApplies to all workloads\u003c\/strong\u003e — increased throughput covers routing, firewall, VPN encryption, voice DSP, WAAS, and SD-WAN services concurrently\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eNo feature changes\u003c\/strong\u003e — purely a throughput upgrade; technology features remain governed by APP\/SEC\/UC licenses\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eCombines with HSEC\u003c\/strong\u003e — use with FL-4330-HSEC-K9 for maximum encrypted throughput in VPN-heavy deployments\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual license\u003c\/strong\u003e — one-time purchase, no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003ehigh-speed fiber WAN links, enterprise SD-WAN hubs, and maximizing ISR 4331 investment\u003c\/strong\u003e for multi-service deployments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-FL-4330-BOOST-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4331\u003c\/strong\u003e Integrated Services Router running IOS XE. \u003cstrong\u003eRequires the PERF license (FL-4330-PERF-K9) as a prerequisite.\u003c\/strong\u003e Requires IOS XE software version 16.x or later with Smart Licensing enabled. \u003cstrong\u003eThroughput tiers:\u003c\/strong\u003e Base = 100 Mbps → PERF = 300 Mbps → PERF + BOOST = maximum platform throughput. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4221, ISR 4321, or ISR 4351. Please verify your router model and current license state before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4331 router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4331 Boost throughput license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required .\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e FL-4330-BOOST-K9  |  L-FL-4330-BOOST-K9  |  FL-4330-BOOST-K9=  |  L-FL-4330-BOOST-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46957522190556,"sku":"L-FL-4330-BOOST-K9","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-FL-4330-BOOST-K9.jpg?v=1776688716"},{"product_id":"l-sl-4350-sec-k9","title":"Cisco L-SL-4350-SEC-K9 | Security License for ISR 4351 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-SL-4350-SEC-K9 | ISR 4351 Security Technology Package License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-SL-4350-SEC-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4351 Security Technology Package License\u003c\/strong\u003e — the comprehensive security feature set for the high-performance Cisco ISR 4351 Integrated Services Router. This \u003cstrong\u003eCisco ISR 4351 SEC license\u003c\/strong\u003e activates Zone-Based Firewall (ZBFW), IPsec VPN with IKEv2, DMVPN, GET VPN, FlexVPN, and SSL VPN with 200 Mbps base throughput, making it the essential upgrade for enterprise campus, data center edge, and large regional hub deployments that require carrier-grade security with the highest throughput in the ISR 4000 family.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eSL-4350-SEC-K9\u003c\/strong\u003e or \u003cstrong\u003eL-SL-4350-SEC-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4351 Security license\u003c\/strong\u003e is a perpetual IOS XE Smart License that transforms the ISR 4351 into a full-featured high-throughput secure WAN platform. The license includes \u003cstrong\u003eZone-Based Policy Firewall\u003c\/strong\u003e for granular inter-zone traffic control at wire speed, \u003cstrong\u003eIKEv2\/IPsec VPN\u003c\/strong\u003e with hardware-accelerated AES-GCM encryption, \u003cstrong\u003eDMVPN\u003c\/strong\u003e for large-scale dynamic hub-and-spoke VPN fabrics, \u003cstrong\u003eGET VPN\u003c\/strong\u003e for any-to-any group encryption, \u003cstrong\u003eFlexVPN\u003c\/strong\u003e for unified IKEv2-based policy-driven VPN, \u003cstrong\u003eSSL VPN\u003c\/strong\u003e for high-concurrency clientless remote access, and \u003cstrong\u003eNetwork Foundation Protection\u003c\/strong\u003e for comprehensive DDoS defense. For unlimited crypto throughput and tunnel capacity, pair with \u003cstrong\u003eFL-4350-HSEC-K9\u003c\/strong\u003e. Whether securing a campus WAN edge or building an enterprise encrypted backbone, the \u003cstrong\u003eISR 4351 SEC license e-delivery\u003c\/strong\u003e delivers maximum security on the highest-performance ISR 4000 platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eZone-Based Policy Firewall (ZBFW)\u003c\/strong\u003e — high-throughput stateful inspection with per-zone security policies for wire-speed inter-segment traffic control\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eIKEv2\/IPsec VPN with AES-GCM\u003c\/strong\u003e — hardware-accelerated AES-GCM encryption delivering high-throughput site-to-site and remote-access VPN\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eDMVPN and FlexVPN\u003c\/strong\u003e — large-scale Dynamic Multipoint VPN for hub-and-spoke fabrics and FlexVPN for unified IKEv2 policy-driven configuration\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eGET VPN\u003c\/strong\u003e — Group Encrypted Transport VPN for any-to-any encrypted group communication with minimal overhead at scale\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eSSL VPN (WebVPN)\u003c\/strong\u003e — high-concurrency clientless browser-based remote access for large enterprises with flexible access policies\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eNetwork Foundation Protection\u003c\/strong\u003e — enterprise-grade control-plane policing and secure management for comprehensive infrastructure defense\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual License\u003c\/strong\u003e — one-time purchase,  no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003ecampus WAN security, data center edge, and enterprise encrypted backbone\u003c\/strong\u003e on the highest-performance ISR 4000 platform\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-SL-4350-SEC-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4351\u003c\/strong\u003e Integrated Services Router running IOS XE. Requires IOS XE software version 16.x or later with Smart Licensing enabled. Base throughput is 200 Mbps; for unlimited crypto throughput and IPsec tunnels, pair with \u003cstrong\u003eFL-4350-HSEC-K9\u003c\/strong\u003e. For higher aggregate throughput, add \u003cstrong\u003eFL-4350-PERF-K9\u003c\/strong\u003e (400 Mbps) and \u003cstrong\u003eFL-4350-BOOST-K9\u003c\/strong\u003e. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4221, ISR 4321, ISR 4331, or ISR 4431\/4451\/4461 — each platform requires its own license SKU. Please verify your router model before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4351 router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4351 Security technology package license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required .\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e SL-4350-SEC-K9  |  L-SL-4350-SEC-K9  |  SL-4350-SEC-K9=  |  L-SL-4350-SEC-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46957544571100,"sku":"L-SL-4350-SEC-K9","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-SL-4350-SEC-K9.jpg?v=1776688737"},{"product_id":"l-sl-4350-uc-k9","title":"Cisco L-SL-4350-UC-K9 | UC (Voice) License for ISR 4351 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-SL-4350-UC-K9 | ISR 4351 Unified Communications Technology Package License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-SL-4350-UC-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4351 Unified Communications Technology Package License\u003c\/strong\u003e — the complete voice and collaboration feature set for the high-performance Cisco ISR 4351 Integrated Services Router. This \u003cstrong\u003eCisco ISR 4351 UC license\u003c\/strong\u003e unlocks TDM\/PSTN gateway capabilities, voice conferencing, codec transcoding, FAX services, and Call Admission Control with the highest session capacity in the ISR 4000 family, making it the ideal upgrade for enterprise campus, large contact center, and carrier-grade voice gateway deployments.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eSL-4350-UC-K9\u003c\/strong\u003e or \u003cstrong\u003eL-SL-4350-UC-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4351 UC license\u003c\/strong\u003e is a perpetual IOS XE Smart License that upgrades the ISR 4351 to the highest-capacity enterprise voice gateway in the ISR 4000 series. The license includes \u003cstrong\u003eCisco Unified Communications Manager Express (CME)\u003c\/strong\u003e for campus-scale IP-PBX supporting hundreds of phones, \u003cstrong\u003eSurvivable Remote Site Telephony (SRST)\u003c\/strong\u003e for WAN outage resilience, \u003cstrong\u003eCisco Unified Border Element (CUBE)\u003c\/strong\u003e for carrier-grade SIP trunk termination and protocol normalization, \u003cstrong\u003eGatekeeper\u003c\/strong\u003e for H.323 call routing, and \u003cstrong\u003eVXML\/IVR\u003c\/strong\u003e for advanced interactive voice response. \u003cstrong\u003eDSP modules (PVDM4)\u003c\/strong\u003e are required for voice processing. Whether deploying a campus PBX or a carrier-grade SIP gateway, the \u003cstrong\u003eISR 4351 UC license e-delivery\u003c\/strong\u003e delivers maximum enterprise voice capacity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eTDM\/PSTN Gateway\u003c\/strong\u003e — connect legacy PSTN trunks (FXO\/FXS\/T1\/E1\/PRI\/BRI\/DS3) with the highest-density interface support in the ISR 4000 family\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eCisco CME and SRST\u003c\/strong\u003e — campus-scale IP-PBX (CME) for hundreds of phones and Survivable Remote Site Telephony for enterprise WAN resilience\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eCisco Unified Border Element (CUBE)\u003c\/strong\u003e — carrier-grade enterprise SBC for high-volume SIP trunk termination and multi-domain protocol normalization\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eVoice conferencing and codec transcoding\u003c\/strong\u003e — high-capacity multi-party conferencing and real-time codec conversion for enterprise-scale deployments\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eFAX T.37\/T.38 and VXML\/IVR\u003c\/strong\u003e — reliable FoIP with T.38\/T.37 and advanced interactive voice response applications for enterprise contact centers\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eCAC and QoS for voice\u003c\/strong\u003e — Call Admission Control and advanced QoS for toll-quality voice across hundreds of concurrent sessions\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual License\u003c\/strong\u003e — one-time purchase, no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003ecampus PBX, carrier-grade SIP trunking, and enterprise contact center voice gateway\u003c\/strong\u003e on ISR 4351\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-SL-4350-UC-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4351\u003c\/strong\u003e Integrated Services Router running IOS XE. Requires IOS XE software version 16.x or later with Smart Licensing enabled. \u003cstrong\u003eDSP modules (PVDM4)\u003c\/strong\u003e are required for voice gateway, conferencing, and transcoding functions. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4221, ISR 4321, ISR 4331, or ISR 4431\/4451\/4461. Please verify your router model and DSP configuration before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4351 router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4351 Unified Communications technology package license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required .\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e SL-4350-UC-K9  |  L-SL-4350-UC-K9  |  SL-4350-UC-K9=  |  L-SL-4350-UC-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46957545980124,"sku":"SL-4350-UC-K9","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-SL-4350-UC-K9.jpg?v=1776688759"},{"product_id":"l-sl-4350-app-k9","title":"Cisco L-SL-4350-APP-K9 | AppX License for ISR 4351 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-SL-4350-APP-K9 | ISR 4351 Application Experience (AppX) Technology Package License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-SL-4350-APP-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4351 Application Experience (AppX) Technology Package License\u003c\/strong\u003e — the complete application visibility and intelligent path control feature set for the highest-performance Cisco ISR 4351 Integrated Services Router. This \u003cstrong\u003eCisco ISR 4351 APP license\u003c\/strong\u003e activates NBAR2 deep packet inspection, Application Visibility \u0026amp; Control (AVC), Performance Routing v3 (PfRv3), WAAS Express, and IP SLA with 200 Mbps base throughput, making it the ideal upgrade for enterprise campus, data center edge, and carrier-grade SD-WAN hub deployments.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eSL-4350-APP-K9\u003c\/strong\u003e or \u003cstrong\u003eL-SL-4350-APP-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4351 AppX license\u003c\/strong\u003e is a perpetual IOS XE Smart License that brings maximum-scale application intelligence to the ISR 4000 platform. The license enables \u003cstrong\u003eNBAR2 application recognition\u003c\/strong\u003e for 1,400+ applications, \u003cstrong\u003eAVC\u003c\/strong\u003e for per-application QoS and real-time dashboards at high throughput, \u003cstrong\u003ePfRv3\u003c\/strong\u003e for intelligent multi-WAN path selection across high-speed links, \u003cstrong\u003eWAAS Express\u003c\/strong\u003e for WAN optimization with TCP optimization, DRE, and LZ compression, and \u003cstrong\u003eIP SLA\u003c\/strong\u003e for proactive monitoring. \u003cstrong\u003eDoes NOT include SEC features\u003c\/strong\u003e — firewall and VPN require separate SEC license. Whether you are deploying an enterprise SD-WAN hub or optimizing hundreds of SaaS applications across the WAN, the \u003cstrong\u003eISR 4351 APP license e-delivery\u003c\/strong\u003e provides the most powerful application intelligence in the ISR 4000 series.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eNBAR2 Deep Packet Inspection\u003c\/strong\u003e — classifies over 1,400 applications at high throughput for enterprise-scale traffic analysis\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eApplication Visibility \u0026amp; Control (AVC)\u003c\/strong\u003e — per-application QoS, bandwidth control, and real-time dashboards for hundreds of concurrent application flows\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerformance Routing v3 (PfRv3)\u003c\/strong\u003e — intelligent WAN path selection using real-time jitter, loss, delay, and MOS across multiple high-speed WAN links\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eWAAS Express\u003c\/strong\u003e — enterprise WAN optimization with TCP acceleration, data redundancy elimination, and LZ compression for high-bandwidth links\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eIP SLA\u003c\/strong\u003e — proactive network performance monitoring with synthetic traffic for multi-WAN link health and SLA compliance reporting\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eDoes NOT include SEC features\u003c\/strong\u003e — firewall and IPsec VPN require separate SEC license; APP covers visibility + optimization only\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual License\u003c\/strong\u003e — one-time purchase, no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003eenterprise SD-WAN hubs, campus application optimization, and large-scale SaaS performance management\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-SL-4350-APP-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4351\u003c\/strong\u003e Integrated Services Router running IOS XE. Requires IOS XE software version 16.x or later with Smart Licensing enabled. \u003cstrong\u003eWAAS Express requires a DRAM upgrade\u003c\/strong\u003e to the maximum supported memory. For higher aggregate throughput, add \u003cstrong\u003eFL-4350-PERF-K9\u003c\/strong\u003e (400 Mbps) and \u003cstrong\u003eFL-4350-BOOST-K9\u003c\/strong\u003e. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4221, ISR 4321, ISR 4331, or ISR 4431\/4451\/4461. Please verify your router model before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4351 router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4351 Application Experience technology package license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required .\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e SL-4350-APP-K9  |  L-SL-4350-APP-K9  |  SL-4350-APP-K9=  |  L-SL-4350-APP-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46957546045660,"sku":"L-SL-4350-APP-K9","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-SL-4350-APP-K9.jpg?v=1776688778"},{"product_id":"l-fl-4350-perf-k9","title":"Cisco L-FL-4350-PERF-K9 | Performance License (200M to 400M) for 4351 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-FL-4350-PERF-K9 | ISR 4351 Performance Throughput License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-FL-4350-PERF-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4351 Performance (PERF) Throughput License\u003c\/strong\u003e — the essential upgrade that doubles the aggregate throughput of the Cisco ISR 4351 Integrated Services Router from 200 Mbps to 400 Mbps. This \u003cstrong\u003eCisco ISR 4351 performance license\u003c\/strong\u003e unlocks the next throughput tier on the highest-performance ISR 4000 platform, making it the critical upgrade for enterprise campus, data center edge, and carrier-grade deployments that need maximum WAN bandwidth for concurrent routing, security, voice, and SD-WAN services.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eFL-4350-PERF-K9\u003c\/strong\u003e or \u003cstrong\u003eL-FL-4350-PERF-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4351 throughput upgrade license\u003c\/strong\u003e is a perpetual feature license that removes the base 200 Mbps aggregate throughput limit and raises it to 400 Mbps. The PERF license is a \u003cstrong\u003eprerequisite for the BOOST license\u003c\/strong\u003e (FL-4350-BOOST-K9), which further increases throughput to the platform maximum (~600+ Mbps). Unlike technology packages, the PERF license does not add features — it purely increases throughput across all services. As a \u003cstrong\u003eCisco ISR 4000 performance license\u003c\/strong\u003e, it is applied via Smart Licensing on IOS XE. Whether upgrading from a 200 Mbps WAN link or preparing for SD-WAN at carrier scale, the \u003cstrong\u003eISR 4351 PERF license e-delivery\u003c\/strong\u003e doubles your router's capacity instantly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eDoubles aggregate throughput\u003c\/strong\u003e — raises the ISR 4351 platform limit from 200 Mbps to 400 Mbps aggregate (combined ingress + egress)\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eSoftware-based throughput unlock\u003c\/strong\u003e — no hardware module or physical upgrade; activated entirely through Smart Licensing on IOS XE\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePrerequisite for BOOST license\u003c\/strong\u003e — the FL-4350-BOOST-K9 requires PERF first; BOOST raises throughput to the maximum (~600+ Mbps)\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eApplies to all services\u003c\/strong\u003e — increased throughput covers routing, firewall, VPN encryption, voice DSP, WAAS, and SD-WAN concurrently\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eNo feature changes\u003c\/strong\u003e — purely a throughput upgrade; technology features remain governed by APP\/SEC\/UC licenses\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual license\u003c\/strong\u003e — one-time purchase,  no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eE-Delivery\u003c\/strong\u003e — license entitlement delivered electronically, fast activation with no shipping delay\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003eenterprise campus WAN, data center edge, and carrier-grade multi-service deployments\u003c\/strong\u003e on ISR 4351\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-FL-4350-PERF-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4351\u003c\/strong\u003e Integrated Services Router running IOS XE. Requires IOS XE software version 16.x or later with Smart Licensing enabled. \u003cstrong\u003eThroughput tiers:\u003c\/strong\u003e Base = 200 Mbps → PERF = 400 Mbps → PERF + BOOST = ~600+ Mbps. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4221, ISR 4321, ISR 4331, or ISR 4431\/4451\/4461 — each platform uses its own performance license SKU. Please verify your router model before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4351 router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4351 Performance throughput license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e FL-4350-PERF-K9  |  L-FL-4350-PERF-K9  |  FL-4350-PERF-K9=  |  L-FL-4350-PERF-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46957548110044,"sku":"L-FL-4350-PERF-K9","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-FL-4350-PERF-K9.jpg?v=1776688799"},{"product_id":"l-fl-4350-hsec-k9","title":"Cisco L-FL-4350-HSEC-K9 | High Security License for 4351 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-FL-4350-HSEC-K9 | ISR 4351 High Security (HSEC) Feature License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-FL-4350-HSEC-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4351 High Security (HSEC) Feature License\u003c\/strong\u003e — the critical upgrade that removes export-restricted crypto throughput caps and enables unlimited IPsec tunnel capacity on the highest-performance Cisco ISR 4351 Integrated Services Router. This \u003cstrong\u003eCisco ISR 4351 HSEC license\u003c\/strong\u003e unlocks the full hardware crypto engine of the ISR 4351, eliminating the default tunnel count and throughput limitations for enterprise and carrier-grade VPN deployments.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eFL-4350-HSEC-K9\u003c\/strong\u003e or \u003cstrong\u003eL-FL-4350-HSEC-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4351 HSEC license\u003c\/strong\u003e is a perpetual feature license requiring the \u003cstrong\u003eSEC (securityk9) technology package\u003c\/strong\u003e as a prerequisite. Once activated, HSEC removes IPsec tunnel caps and export-limited crypto thresholds, enabling the 4351 to encrypt at its full rated hardware capacity — critical for high-throughput DMVPN head-ends, GET VPN group members, and enterprise encrypted backbones. Without HSEC, VPN throughput is limited to export-controlled defaults. As a \u003cstrong\u003eCisco ISR 4000 high security feature license\u003c\/strong\u003e, it works with PERF and BOOST for maximum encrypted throughput at carrier-grade speeds. Whether aggregating thousands of branch VPN tunnels or securing a campus-to-data-center encrypted backbone, the \u003cstrong\u003eISR 4351 HSEC license e-delivery\u003c\/strong\u003e unlocks the 4351's full crypto potential.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eRemoves crypto throughput cap\u003c\/strong\u003e — unlocks full hardware crypto engine performance of the ISR 4351, eliminating all export-restricted limits\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eUnlimited IPsec tunnel capacity\u003c\/strong\u003e — removes default tunnel count limits for carrier-scale DMVPN head-end and hub deployments\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eRequires SEC (securityk9) license\u003c\/strong\u003e — HSEC augments the Security technology package; SEC must be installed first\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eWorks with throughput licenses\u003c\/strong\u003e — combines with PERF (400 Mbps) and BOOST (~600+ Mbps) for maximum encrypted throughput at carrier speeds\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eCompatible with all VPN types\u003c\/strong\u003e — IPsec, DMVPN, GET VPN, FlexVPN, and SSL VPN all benefit from HSEC crypto throughput unlock\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual license\u003c\/strong\u003e — one-time purchase,  no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eE-Delivery\u003c\/strong\u003e — license entitlement delivered electronically, fast activation with no shipping delay\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003ecarrier-grade VPN aggregation, enterprise encrypted backbones, and large-scale DMVPN head-ends\u003c\/strong\u003e on ISR 4351\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-FL-4350-HSEC-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4351\u003c\/strong\u003e Integrated Services Router running IOS XE. Requires the \u003cstrong\u003eSEC (securityk9) technology package license\u003c\/strong\u003e as a prerequisite. Requires IOS XE software version 16.x or later with Smart Licensing enabled. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4221, ISR 4321, ISR 4331, or ISR 4431\/4451\/4461 — each platform requires its own HSEC SKU. Please verify your router model and current license state before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4351 router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4351 High Security feature license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required .\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e FL-4350-HSEC-K9  |  L-FL-4350-HSEC-K9  |  FL-4350-HSEC-K9=  |  L-FL-4350-HSEC-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46957568032988,"sku":"FL-4350-HSEC-K9","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-FL-4350-HSEC-K9.jpg?v=1776688820"},{"product_id":"l-fl-4350-boost-k9","title":"Cisco L-FL-4350-BOOST-K9 | Boost License for ISR 4351 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-FL-4350-BOOST-K9 | ISR 4351 Boost Throughput License | E-Delivery\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-FL-4350-BOOST-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4351 Boost Throughput License\u003c\/strong\u003e — the top-tier upgrade that raises the aggregate throughput of the Cisco ISR 4351 Integrated Services Router to its maximum rated capacity (~600+ Mbps) beyond the 400 Mbps PERF tier. This \u003cstrong\u003eCisco ISR 4351 boost license\u003c\/strong\u003e activates the highest throughput tier on the flagship ISR 4000 platform, making it the essential final upgrade for enterprise campus, data center edge, and carrier-grade deployments running concurrent high-throughput routing, security, voice, and SD-WAN services.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eFL-4350-BOOST-K9\u003c\/strong\u003e or \u003cstrong\u003eL-FL-4350-BOOST-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4351 throughput boost license\u003c\/strong\u003e is a perpetual feature license that takes the platform beyond the PERF (400 Mbps) tier to its maximum rated aggregate throughput. The BOOST license \u003cstrong\u003erequires the PERF license (FL-4350-PERF-K9) as a prerequisite\u003c\/strong\u003e — both together unlock full hardware capacity. Unlike technology packages, BOOST purely increases throughput across all workloads. As a \u003cstrong\u003eCisco ISR 4000 Boost license\u003c\/strong\u003e, it is applied via Smart Licensing. Whether running multi-gigabit fiber WAN, supporting thousands of concurrent voice\/video sessions, or deploying carrier-grade SD-WAN with full application optimization, the \u003cstrong\u003eISR 4351 BOOST license e-delivery\u003c\/strong\u003e delivers maximum ISR 4000 performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eMaximum platform throughput\u003c\/strong\u003e — raises the ISR 4351 to its highest rated aggregate throughput tier (~600+ Mbps) beyond PERF (400 Mbps)\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eRequires PERF license\u003c\/strong\u003e — the FL-4350-PERF-K9 must be installed as a prerequisite; BOOST cannot be applied to the base (200 Mbps) tier\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eSoftware-based throughput unlock\u003c\/strong\u003e — maximum capacity activated entirely through Smart Licensing; no hardware module required\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eApplies to all workloads\u003c\/strong\u003e — concurrent routing, firewall, VPN, voice DSP, WAAS, and SD-WAN at maximum platform throughput\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eNo feature changes\u003c\/strong\u003e — purely a throughput upgrade; technology features remain governed by APP\/SEC\/UC licenses\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eCombines with HSEC\u003c\/strong\u003e — use with FL-4350-HSEC-K9 for carrier-grade encrypted throughput in large-scale VPN deployments\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual license\u003c\/strong\u003e — one-time purchase,  no recurring subscription fees\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Ideal for \u003cstrong\u003ecarrier-grade SD-WAN, enterprise campus WAN, and maximizing ISR 4351 investment\u003c\/strong\u003e for the most demanding deployments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eL-FL-4350-BOOST-K9\u003c\/strong\u003e is exclusively compatible with the \u003cstrong\u003eCisco ISR 4351\u003c\/strong\u003e Integrated Services Router running IOS XE. \u003cstrong\u003eRequires the PERF license (FL-4350-PERF-K9) as a prerequisite.\u003c\/strong\u003e Requires IOS XE software version 16.x or later with Smart Licensing enabled. \u003cstrong\u003eThroughput tiers:\u003c\/strong\u003e Base = 200 Mbps → PERF = 400 Mbps → PERF + BOOST = ~600+ Mbps. \u003cstrong\u003eNot compatible\u003c\/strong\u003e with ISR 4221, ISR 4321, ISR 4331, or ISR 4431\/4451\/4461. Please verify your router model and current license state before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4351 router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco ISR 4351 Boost throughput license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003elicense entitlement by email\u003c\/strong\u003e. No physical shipment is required .\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e FL-4350-BOOST-K9  |  L-FL-4350-BOOST-K9  |  FL-4350-BOOST-K9=  |  L-FL-4350-BOOST-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46957636649180,"sku":"L-FL-4350-BOOST-K9","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-FL-4350-BOOST-K9.jpg?v=1776688840"},{"product_id":"l-fl-4430-boost-k9","title":"Cisco L-FL-4430-BOOST-K9 | Boost License for ISR 4431 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-FL-4430-BOOST-K9 | ISR 4430 Series Booster Performance License for ISR 4431 | E-Delivery\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-FL-4430-BOOST-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4430 Series Booster Performance License\u003c\/strong\u003e — the ultimate performance unlock for your \u003cstrong\u003eCisco ISR 4431 Integrated Services Router\u003c\/strong\u003e. This \u003cstrong\u003eCisco IOS XE booster license\u003c\/strong\u003e removes all software-imposed throughput caps, unleashing the full hardware capability of the ISR 4431 with up to \u003cstrong\u003e4 Gbps aggregate CEF throughput\u003c\/strong\u003e and support for up to \u003cstrong\u003e5,000 concurrent VPN tunnels\u003c\/strong\u003e, making it the essential \u003cstrong\u003eCisco 4431 performance upgrade license\u003c\/strong\u003e for bandwidth-intensive enterprise edge, branch aggregation, and secure SD-WAN deployments.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eFL-4430-BOOST-K9\u003c\/strong\u003e, \u003cstrong\u003eFL-4430-BOOST-K9=\u003c\/strong\u003e, or \u003cstrong\u003eL-FL-4430-BOOST-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco 4431 booster performance license\u003c\/strong\u003e is a perpetual, electronically delivered software license that activates directly on your existing ISR 4431 hardware. Compared to the base 500 Mbps default throughput and the 1 Gbps mid-tier performance license, the \u003cstrong\u003eISR 4431 boost license\u003c\/strong\u003e delivers a dramatic increase in forwarding capacity — ideal for networks running concurrent services such as \u003cstrong\u003eIPsec VPN, advanced QoS, NAT, firewall, and MPLS\u003c\/strong\u003e. No hardware swap needed: simply install the license file and your ISR 4431 is immediately upgraded to its maximum rated performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Removes all \u003cstrong\u003esoftware-imposed throughput caps\u003c\/strong\u003e — unlocks up to \u003cstrong\u003e4 Gbps CEF forwarding\u003c\/strong\u003e on the ISR 4431\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Supports up to \u003cstrong\u003e5,000 concurrent IPsec VPN tunnels\u003c\/strong\u003e — ideal for large-scale secure branch and remote access\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Enables advanced \u003cstrong\u003ehierarchical QoS policies\u003c\/strong\u003e — traffic shaping, policing, classification, and prioritization for voice, video, and data\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual license\u003c\/strong\u003e — one-time purchase with no recurring subscription, annual renewal, or term expiration\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eE-Delivery\u003c\/strong\u003e — license file sent by email, activated via Cisco IOS XE CLI or web interface with no physical shipment\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Works with all \u003cstrong\u003eCisco IOS XE 16.9 and later\u003c\/strong\u003e releases — fully compatible with 17.9.x and 17.12.x maintenance trains\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e No hardware replacement required — activates directly on your \u003cstrong\u003eexisting Cisco ISR 4431\u003c\/strong\u003e router\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eFL-4430-BOOST-K9\u003c\/strong\u003e license is exclusively compatible with the \u003cstrong\u003eCisco ISR 4431 Integrated Services Router\u003c\/strong\u003e series. Supported models include \u003cstrong\u003eISR4431\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-AX\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-AXV\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-SEC\/K9\u003c\/strong\u003e, and \u003cstrong\u003eISR4431-V\/K9\u003c\/strong\u003e. Requires \u003cstrong\u003eCisco IOS XE 16.9\u003c\/strong\u003e or later. Not compatible with ISR 4321, ISR 4331, ISR 4351, ISR 4451, or Catalyst 8000 series routers. For other ISR 4000 models, please check the corresponding booster license (e.g., \u003cstrong\u003eFL-4330-BOOST-K9\u003c\/strong\u003e for ISR 4331 or \u003cstrong\u003eFL-44-BOOST-K9\u003c\/strong\u003e for ISR 4451).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4431 router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco software license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003e.lic license file by email\u003c\/strong\u003e. No physical shipment is required — simply install the file on your ISR 4431 and the booster performance upgrade is immediately active.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license file does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e FL-4430-BOOST-K9  |  L-FL-4430-BOOST-K9  |  FL-4430-BOOST-K9=  |  L-FL-4430-BOOST-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46957695303900,"sku":"L-FL-4430-BOOST-K9","price":70.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-FL-4430-BOOST-K9.jpg?v=1776688860"},{"product_id":"l-fl-44-perf-k9","title":"Cisco L-FL-44-PERF-K9 | Performance License for 4431\/4451 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-FL-44-PERF-K9 | ISR 4400 Series Performance on Demand License for ISR 4431 \u0026amp; ISR 4451-X | E-Delivery\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-FL-44-PERF-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4400 Series Performance on Demand License\u003c\/strong\u003e — the most cost-effective throughput upgrade for your \u003cstrong\u003eCisco ISR 4431 and ISR 4451-X Integrated Services Routers\u003c\/strong\u003e. This \u003cstrong\u003eCisco 4400 Series performance license\u003c\/strong\u003e doubles the router's rated aggregate throughput — boosting the \u003cstrong\u003eISR 4451-X from 1 Gbps to 2 Gbps\u003c\/strong\u003e and the \u003cstrong\u003eISR 4431 from 500 Mbps to 1 Gbps\u003c\/strong\u003e — without any hardware changes. For growing branch offices, enterprise WAN edges, and SD-WAN deployments, the \u003cstrong\u003eFL-44-PERF-K9 e-delivery license\u003c\/strong\u003e delivers immediate bandwidth scaling at a fraction of the cost of a hardware refresh.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eFL-44-PERF-K9\u003c\/strong\u003e, \u003cstrong\u003eFL-44-PERF-K9=\u003c\/strong\u003e, or \u003cstrong\u003eL-FL-44-PERF-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco Performance on Demand license for 4400 Series\u003c\/strong\u003e is a perpetual, electronically delivered software license activated via Cisco's right-to-use licensing model. The \u003cstrong\u003eISR 4400 performance upgrade license\u003c\/strong\u003e unlocks latent hardware capacity already built into your router — no need to swap hardware, replace modules, or re-cable your rack. Simply apply the PAK, reload, and the increased throughput is immediately available across all forwarding planes. Ideal for organizations scaling up \u003cstrong\u003eIPsec VPN, MPLS, QoS, NAT, and firewall services\u003c\/strong\u003e on existing ISR 4400 infrastructure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eDoubles aggregate throughput\u003c\/strong\u003e — ISR 4451-X from 1 Gbps to \u003cstrong\u003e2 Gbps\u003c\/strong\u003e, ISR 4431 from 500 Mbps to \u003cstrong\u003e1 Gbps\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Single SKU covers \u003cstrong\u003eboth ISR 4431 and ISR 4451-X\u003c\/strong\u003e platforms — simplifies procurement and license management\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerformance on Demand\u003c\/strong\u003e — pay-as-you-grow model, activate increased throughput only when your bandwidth needs require it\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual license\u003c\/strong\u003e — one-time purchase, no recurring subscription, annual renewal, or term expiration\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eE-Delivery PAK\u003c\/strong\u003e — license file delivered by email, activated via Cisco IOS XE CLI with no physical shipment required\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Works with all \u003cstrong\u003eCisco IOS XE 16.x and 17.x\u003c\/strong\u003e releases — fully compatible with 17.9.x and 17.12.x maintenance trains\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eNo hardware replacement needed\u003c\/strong\u003e — unlocks latent performance already built into your existing ISR 4400 router\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eFL-44-PERF-K9\u003c\/strong\u003e performance license is compatible with the \u003cstrong\u003eCisco ISR 4431\u003c\/strong\u003e (all models: \u003cstrong\u003eISR4431\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-AX\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-AXV\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-SEC\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-V\/K9\u003c\/strong\u003e) and the \u003cstrong\u003eCisco ISR 4451-X\u003c\/strong\u003e (all models: \u003cstrong\u003eISR4451-X\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4451-AX\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4451-SEC\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4451-V\/K9\u003c\/strong\u003e). Requires a base \u003cstrong\u003eIP Base license (SL-44-IPB-K9)\u003c\/strong\u003e on the router. Not compatible with ISR 4321, ISR 4331, ISR 4351, ISR 4461, or Catalyst 8000 Series routers. For other ISR 4000 models, please check the corresponding performance license (e.g., \u003cstrong\u003eFL-4330-PERF-K9\u003c\/strong\u003e for ISR 4331 or \u003cstrong\u003eFL-4350-PERF-K9\u003c\/strong\u003e for ISR 4351). For maximum uncapped throughput, consider the \u003cstrong\u003eFL-44-BOOST-K9\u003c\/strong\u003e booster license.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4400 Series router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco software license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003e.lic license file by email\u003c\/strong\u003e. No physical shipment is required — simply install the file on your ISR 4400 Series router and the doubled throughput capacity is immediately active.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license file does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e FL-44-PERF-K9  |  L-FL-44-PERF-K9  |  FL-44-PERF-K9=  |  L-FL-44-PERF-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46957718438108,"sku":"L-FL-44-PERF-K9","price":70.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-FL-44-PERF-K9.jpg?v=1776688882"},{"product_id":"l-fl-44-boost-k9","title":"Cisco L-FL-44-BOOST-K9 | Boost License for 4431\/4451 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-FL-44-BOOST-K9 | ISR 4400 Series Booster Performance License for ISR 4451-X | E-Delivery\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-FL-44-BOOST-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco ISR 4400 Series Booster Performance License\u003c\/strong\u003e — the ultimate throughput unlock for your \u003cstrong\u003eCisco ISR 4451-X Integrated Services Router\u003c\/strong\u003e. This \u003cstrong\u003eCisco 4451 boost license\u003c\/strong\u003e completely removes the aggregate throughput shaper, unleashing the full CPU capacity of the ISR 4451-X for up to \u003cstrong\u003e4+ Gbps of unshaped CEF routing throughput\u003c\/strong\u003e with all 9 PPE cores active. For high-performance enterprise WAN edge, data center interconnect, and bandwidth-intensive SD-WAN deployments, the \u003cstrong\u003eFL-44-BOOST-K9 e-delivery license\u003c\/strong\u003e is the definitive performance upgrade — no hardware swap, no downtime beyond a simple reload.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eFL-44-BOOST-K9\u003c\/strong\u003e, \u003cstrong\u003eFL-44-BOOST-K9=\u003c\/strong\u003e, or \u003cstrong\u003eL-FL-44-BOOST-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco 4451-X booster performance license\u003c\/strong\u003e is a perpetual, electronically delivered Right-to-Use (RTU) license activated via a single CLI command. Compared to the factory default 1 Gbps (5 PPE cores) and the mid-tier 2 Gbps performance license (9 PPE cores), the \u003cstrong\u003eISR 4451 boost license\u003c\/strong\u003e disables all software-imposed rate limiting — throughput becomes limited only by your hardware and feature configuration. Starting with Cisco IOS XE 17.3.2, no pre-authorization or CSSM registration is required: simply issue \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eplatform hardware throughput level boost\u003c\/code\u003e, reload, and your ISR 4451-X is immediately running at maximum performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Removes the \u003cstrong\u003eaggregate throughput shaper\u003c\/strong\u003e — unlocks \u003cstrong\u003e4+ Gbps unshaped CEF routing\u003c\/strong\u003e on the ISR 4451-X\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Activates all \u003cstrong\u003e9 PPE cores + 1 I\/O core\u003c\/strong\u003e — up from 5 PPE cores at factory default, delivering near-linear performance scaling\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eRight-to-Use (RTU) license\u003c\/strong\u003e from IOS XE 17.3.2+ — no CSSM registration, no pre-authorization, activate instantly via CLI\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual license\u003c\/strong\u003e — one-time purchase with no recurring subscription, annual renewal, or term expiration\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eE-Delivery\u003c\/strong\u003e — license file delivered by email, activated with a single configuration command and a reload\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Works with all \u003cstrong\u003eCisco IOS XE 16.7.1 and later\u003c\/strong\u003e releases ,traditional license under IOS XR16.9 \u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eNo hardware replacement needed\u003c\/strong\u003e — unlocks latent performance already built into your existing ISR 4451-X router\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eFL-44-BOOST-K9\u003c\/strong\u003e license is exclusively compatible with the \u003cstrong\u003eCisco ISR 4451-X Integrated Services Router\u003c\/strong\u003e series. Supported models include \u003cstrong\u003eISR4451-X\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4451-AX\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4451-SEC\/K9\u003c\/strong\u003e, and \u003cstrong\u003eISR4451-V\/K9\u003c\/strong\u003e. Requires \u003cstrong\u003eCisco IOS XE 16.7.1\u003c\/strong\u003e or later (RTU activation available from 17.3.2+). Not compatible with ISR 4431, ISR 4331, ISR 4351, ISR 4461, or Catalyst 8000 Series routers. For ISR 4431, use \u003cstrong\u003eFL-4430-BOOST-K9\u003c\/strong\u003e. For ISR 4461, use \u003cstrong\u003eFL-4460-BOOST-K9\u003c\/strong\u003e. Note: for encrypted VPN throughput above 225 Mbps, the \u003cstrong\u003eFL-44-HSEC-K9\u003c\/strong\u003e (HSEC license) is also required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4451-X router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco software license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003e.lic license file by email\u003c\/strong\u003e. No physical shipment is required — simply install the file on your ISR 4451-X, run \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eplatform hardware throughput level boost\u003c\/code\u003e, reload, and your router is immediately running at full unthrottled performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license file does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e FL-44-BOOST-K9  |  L-FL-44-BOOST-K9  |  FL-44-BOOST-K9=  |  L-FL-44-BOOST-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46957741572316,"sku":"L-FL-44-BOOST-K9","price":70.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-FL-44-BOOST-K9.jpg?v=1776688903"},{"product_id":"l-fl-44-hsec-k9","title":"Cisco L-FL-44-HSEC-K9 | High Security License for 4431\/4451 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-FL-44-HSEC-K9 | U.S. Export Restriction Compliance \/ High Security License for ISR 4400 Series | E-Delivery\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-FL-44-HSEC-K9\u003c\/strong\u003e is a \u003cstrong\u003eCisco U.S. Export Restriction Compliance \/ High Security (HSEC) License\u003c\/strong\u003e for the \u003cstrong\u003eCisco ISR 4431 and ISR 4451-X Integrated Services Routers\u003c\/strong\u003e. This \u003cstrong\u003eCisco 4400 Series HSEC license\u003c\/strong\u003e removes the U.S. government-imposed cryptographic throughput cap — unlocking your router's full hardware-accelerated IPsec VPN performance. Without HSEC, encrypted throughput is restricted to \u003cstrong\u003eapproximately 85 Mbps per direction\u003c\/strong\u003e regardless of the performance license installed. Once the \u003cstrong\u003eFL-44-HSEC-K9 e-delivery license\u003c\/strong\u003e is applied, the export cap is lifted, enabling multi-gigabit IPsec VPN throughput when paired with the appropriate performance or booster license.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eFL-44-HSEC-K9\u003c\/strong\u003e, \u003cstrong\u003eFL-44-HSEC-K9=\u003c\/strong\u003e, or \u003cstrong\u003eL-FL-44-HSEC-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4451 high security license\u003c\/strong\u003e is a permanent, non-evaluation software license that works in conjunction with the \u003cstrong\u003esecurityk9 technology package\u003c\/strong\u003e on a universalk9 IOS XE image. It is the essential prerequisite for any deployment requiring \u003cstrong\u003ehigh-throughput IPsec VPN, large-scale DMVPN, GETVPN, FlexVPN, or secure SD-WAN edge\u003c\/strong\u003e connectivity beyond the default 85 Mbps crypto limit. Whether you are connecting branch offices, securing cloud backhauls, or deploying a regulated-industry encryption solution, the \u003cstrong\u003eCisco 4400 HSEC license\u003c\/strong\u003e is the mandatory key to achieving production-grade encrypted throughput on the ISR 4400 platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Removes the \u003cstrong\u003eU.S. export-mandated 85 Mbps IPsec throughput cap\u003c\/strong\u003e — unlocks full hardware-accelerated crypto performance\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Enables \u003cstrong\u003emulti-gigabit IPsec VPN throughput\u003c\/strong\u003e when paired with FL-44-PERF-K9 (2 Gbps) or FL-44-BOOST-K9 (4+ Gbps)\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Supports \u003cstrong\u003elarge-scale VPN deployments\u003c\/strong\u003e — DMVPN, GETVPN, FlexVPN, site-to-site IPsec, and secure SD-WAN\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual license\u003c\/strong\u003e — one-time purchase, no recurring subscription, annual renewal, or term expiration\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eE-Delivery\u003c\/strong\u003e — license file delivered by email, activated via Cisco IOS XE CLI on the ISR 4400 Series\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Compatible with all \u003cstrong\u003eCisco IOS XE universalk9 images\u003c\/strong\u003e — requires securityk9 technology package license\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e Covers \u003cstrong\u003eboth ISR 4431 and ISR 4451-X\u003c\/strong\u003e platforms with a single SKU — simplifies license procurement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eFL-44-HSEC-K9\u003c\/strong\u003e HSEC license is compatible with the \u003cstrong\u003eCisco ISR 4431\u003c\/strong\u003e (all models: \u003cstrong\u003eISR4431\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-AX\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-AXV\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-SEC\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-V\/K9\u003c\/strong\u003e) and the \u003cstrong\u003eCisco ISR 4451-X\u003c\/strong\u003e (all models: \u003cstrong\u003eISR4451-X\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4451-AX\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4451-SEC\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4451-V\/K9\u003c\/strong\u003e). Prerequisites: \u003cstrong\u003euniversalk9 IOS XE image\u003c\/strong\u003e and \u003cstrong\u003esecurityk9 technology package license\u003c\/strong\u003e. Not compatible with ISR 4321, ISR 4331, ISR 4351, ISR 4461, or Catalyst 8000 Series routers. For ISR 4331, use \u003cstrong\u003eFL-4330-HSEC-K9\u003c\/strong\u003e. For maximum encrypted throughput, pair with \u003cstrong\u003eFL-44-PERF-K9\u003c\/strong\u003e (performance) or \u003cstrong\u003eFL-44-BOOST-K9\u003c\/strong\u003e (boost) license.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4400 Series router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco software license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003e.lic license file by email\u003c\/strong\u003e. No physical shipment is required — simply install the file on your ISR 4400 Series router and the full IPsec crypto throughput is immediately unlocked.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license file does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e FL-44-HSEC-K9  |  L-FL-44-HSEC-K9  |  FL-44-HSEC-K9=  |  L-FL-44-HSEC-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46957766017244,"sku":"L-FL-44-HSEC-K9","price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-FL-44-HSEC-K9.jpg?v=1776688923"},{"product_id":"l-sl-44-app-k9","title":"Cisco L-SL-44-APP-K9 | AppX License for 4431\/4451 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-SL-44-APP-K9 | ISR 4400 Series Application Experience (AppX) License for ISR 4431 \u0026amp; ISR 4451-X | E-Delivery\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-SL-44-APP-K9\u003c\/strong\u003e is the \u003cstrong\u003eCisco ISR 4400 Series Application Experience (AppX) Technology Package License\u003c\/strong\u003e — the most comprehensive feature bundle available for the \u003cstrong\u003eCisco ISR 4431 and ISR 4451-X Integrated Services Routers\u003c\/strong\u003e. This \u003cstrong\u003eCisco 4400 AppX license\u003c\/strong\u003e combines the full IP Base, Security (SEC), and advanced Application Experience feature sets into a single right-to-use (RTU) license. From \u003cstrong\u003eNBAR2 application visibility, WAAS\/vWAAS WAN optimization, and PfRv3 intelligent path selection\u003c\/strong\u003e to \u003cstrong\u003eLISP, OTV, VXLAN, and Akamai Connect web caching\u003c\/strong\u003e, the \u003cstrong\u003eISR 4400 Application Experience license\u003c\/strong\u003e transforms your branch router into a complete application delivery and WAN optimization platform.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eSL-44-APP-K9\u003c\/strong\u003e, \u003cstrong\u003eSL-44-APP-K9=\u003c\/strong\u003e, or \u003cstrong\u003eL-SL-44-APP-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4400 AppX technology package\u003c\/strong\u003e is a perpetual, electronically delivered software license that bundles the \u003cstrong\u003eIP Base\u003c\/strong\u003e, \u003cstrong\u003eSecurity\u003c\/strong\u003e, \u003cstrong\u003eAdvanced Networking\u003c\/strong\u003e, and \u003cstrong\u003eApplication Experience\u003c\/strong\u003e feature sets into one SKU. Key capabilities include: \u003cstrong\u003eNBAR2-based AVC\u003c\/strong\u003e for deep application visibility and QoS policy enforcement, \u003cstrong\u003eWAAS\/vWAAS\u003c\/strong\u003e with AppNav supporting up to 2,500 optimized connections for data deduplication and compression, \u003cstrong\u003ePfRv3\u003c\/strong\u003e for intelligent WAN path selection, \u003cstrong\u003eLISP\u003c\/strong\u003e and \u003cstrong\u003eOTV\u003c\/strong\u003e for hybrid cloud and data center interconnect, \u003cstrong\u003eVPLS\/EoMPLS\u003c\/strong\u003e for Layer 2 extension, and \u003cstrong\u003eAkamai Connect\u003c\/strong\u003e for intelligent edge caching. The AppX license is the ultimate one-SKU solution for enterprise branches demanding full application visibility, WAN optimization, and multi-cloud connectivity on the ISR 4400 platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eAll-in-one bundle\u003c\/strong\u003e — includes IP Base + Security (SEC) + Advanced Networking + Application Experience in a single license\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eNBAR2 \u0026amp; AVC\u003c\/strong\u003e — deep packet inspection with application-aware traffic identification, prioritization, and bandwidth monitoring\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eWAAS\/vWAAS with AppNav\u003c\/strong\u003e — WAN optimization supporting up to 2,500 connections with data deduplication, compression, and caching\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePfRv3\u003c\/strong\u003e — Performance Routing v3 for intelligent WAN path selection based on real-time link performance\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eHybrid cloud connectivity\u003c\/strong\u003e — LISP, OTV, VPLS, EoMPLS, and VXLAN support for data center interconnect and multi-cloud\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eAkamai Connect\u003c\/strong\u003e — intelligent edge web caching for faster content delivery and reduced WAN bandwidth consumption\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual RTU license\u003c\/strong\u003e — one-time purchase, right-to-use activation, no recurring subscription or annual renewal fee\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eSL-44-APP-K9\u003c\/strong\u003e Application Experience license is exclusively compatible with the \u003cstrong\u003eCisco ISR 4431\u003c\/strong\u003e (all models: \u003cstrong\u003eISR4431\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-AX\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-AXV\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-SEC\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-V\/K9\u003c\/strong\u003e) and the \u003cstrong\u003eCisco ISR 4451-X\u003c\/strong\u003e (all models: \u003cstrong\u003eISR4451-X\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4451-AX\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4451-SEC\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4451-V\/K9\u003c\/strong\u003e). Requires a \u003cstrong\u003euniversalk9 IOS XE image\u003c\/strong\u003e with IP Base foundation. Not compatible with ISR 4321, ISR 4331, ISR 4351, ISR 4461, or Catalyst 8000 Series routers. For ISR 4331, use \u003cstrong\u003eSL-4330-APP-K9\u003c\/strong\u003e. For ISR 4351, use \u003cstrong\u003eSL-4350-APP-K9\u003c\/strong\u003e. For a lighter feature set, consider \u003cstrong\u003eSL-44-SEC-K9\u003c\/strong\u003e (Security only) or \u003cstrong\u003eSL-44-UC-K9\u003c\/strong\u003e (Unified Communications only).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4400 Series router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco software license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003e.lic license file by email\u003c\/strong\u003e. No physical shipment is required — simply install the file on your ISR 4400 Series router and the full Application Experience feature set is immediately available.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license file does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e SL-44-APP-K9  |  L-SL-44-APP-K9  |  SL-44-APP-K9=  |  L-SL-44-APP-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46957791609052,"sku":"L-SL-44-APP-K9","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-SL-44-APP-K9.jpg?v=1776688945"},{"product_id":"l-sl-44-sec-k9","title":"Cisco L-SL-44-SEC-K9 | Security License for 4431\/4451 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-SL-44-SEC-K9 | ISR 4400 Series Security (SEC) Technology Package License for ISR 4431 \u0026amp; ISR 4451-X | E-Delivery\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-SL-44-SEC-K9\u003c\/strong\u003e is the \u003cstrong\u003eCisco ISR 4400 Series Security (SEC) Technology Package License\u003c\/strong\u003e — the essential security feature unlock for your \u003cstrong\u003eCisco ISR 4431 and ISR 4451-X Integrated Services Routers\u003c\/strong\u003e. This \u003cstrong\u003eCisco 4400 Security license\u003c\/strong\u003e builds on the IP Base foundation to deliver a complete suite of enterprise-grade security capabilities including \u003cstrong\u003eIPsec VPN, Next-Generation Firewall (NGFW), Intrusion Detection\/Prevention (IDS\/IPS), and Advanced Malware Protection\u003c\/strong\u003e — all running natively on your existing ISR 4400 hardware without additional appliances.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eSL-44-SEC-K9\u003c\/strong\u003e, \u003cstrong\u003eSL-44-SEC-K9=\u003c\/strong\u003e, or \u003cstrong\u003eL-SL-44-SEC-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4400 security technology package\u003c\/strong\u003e is a perpetual, electronically delivered Right-to-Use (RTU) license. The SEC license unlocks: \u003cstrong\u003esite-to-site and remote-access IPsec VPN\u003c\/strong\u003e for encrypted branch connectivity, \u003cstrong\u003eZone-Based Firewall (ZBFW)\u003c\/strong\u003e for granular traffic filtering, \u003cstrong\u003eIDS\/IPS\u003c\/strong\u003e for real-time threat detection and automated response, \u003cstrong\u003eadvanced malware protection\u003c\/strong\u003e against sophisticated cyber threats, \u003cstrong\u003eDMVPN and FlexVPN\u003c\/strong\u003e for scalable secure WAN, and comprehensive \u003cstrong\u003esecurity visibility and compliance reporting\u003c\/strong\u003e. For organizations handling sensitive data, regulated industries, or any deployment requiring production-grade network security, the \u003cstrong\u003eCisco 4400 SEC license\u003c\/strong\u003e transforms your ISR 4400 router into a full-featured secure gateway — no extra hardware, no additional footprint.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eIPsec VPN\u003c\/strong\u003e — site-to-site and remote-access VPN with strong encryption for secure branch and remote user connectivity\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eNext-Generation Firewall (NGFW)\u003c\/strong\u003e — Zone-Based Firewall with application-aware filtering and granular access control\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eIDS\/IPS\u003c\/strong\u003e — real-time intrusion detection and prevention with automated threat response and signature-based analysis\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eAdvanced Malware Protection\u003c\/strong\u003e — protection against sophisticated malware, ransomware, and zero-day threats\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eDMVPN \u0026amp; FlexVPN\u003c\/strong\u003e — scalable, dynamic VPN architectures for multi-site secure WAN deployments\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eSecurity visibility \u0026amp; compliance\u003c\/strong\u003e — detailed traffic analytics, audit trails, and regulatory compliance reporting\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual RTU license\u003c\/strong\u003e — one-time purchase, right-to-use activation, no recurring subscription or annual renewal fee\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eSL-44-SEC-K9\u003c\/strong\u003e Security license is exclusively compatible with the \u003cstrong\u003eCisco ISR 4431\u003c\/strong\u003e (all models: \u003cstrong\u003eISR4431\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-AX\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-AXV\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-SEC\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-V\/K9\u003c\/strong\u003e) and the \u003cstrong\u003eCisco ISR 4451-X\u003c\/strong\u003e (all models: \u003cstrong\u003eISR4451-X\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4451-AX\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4451-SEC\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4451-V\/K9\u003c\/strong\u003e). Requires a \u003cstrong\u003euniversalk9 IOS XE image\u003c\/strong\u003e with IP Base foundation. This is the \u003cstrong\u003esecurityk9 technology package\u003c\/strong\u003e — the prerequisite for the \u003cstrong\u003eFL-44-HSEC-K9\u003c\/strong\u003e high-security crypto license. Not compatible with ISR 4321, ISR 4331, ISR 4351, ISR 4461, or Catalyst 8000 Series routers. For higher feature requirements, consider \u003cstrong\u003eSL-44-APP-K9\u003c\/strong\u003e (AppX, includes SEC + WAAS + AVC). For voice\/video, see \u003cstrong\u003eSL-44-UC-K9\u003c\/strong\u003e (Unified Communications).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4400 Series router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco software license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003e.lic license file by email\u003c\/strong\u003e. No physical shipment is required — simply install the file on your ISR 4400 Series router and the full Security feature set is immediately active.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license file does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e SL-44-SEC-K9  |  L-SL-44-SEC-K9  |  SL-44-SEC-K9=  |  L-SL-44-SEC-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46957811368156,"sku":"L-SL-44-SEC-K9","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-SL-44-SEC-K9.jpg?v=1776688966"},{"product_id":"l-sl-44-uc-k9","title":"Cisco L-SL-44-UC-K9 | UC (Voice) License for 4431\/4451 | E-Delivery","description":"\u003cdiv class=\"product-desc\"\u003e\n\u003c!-- Section: About This Product --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eAbout This Product\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0 0 10px 0;\"\u003eBuy Cisco L-SL-44-UC-K9 | ISR 4400 Series Unified Communications (UC) Technology Package License for ISR 4431 \u0026amp; ISR 4451-X | E-Delivery\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eThis license on sale are available exclusively Traditional License.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0 0 14px 0;\"\u003eThe \u003cstrong\u003eL-SL-44-UC-K9\u003c\/strong\u003e is the \u003cstrong\u003eCisco ISR 4400 Series Unified Communications (UC) Technology Package License\u003c\/strong\u003e — the complete voice and video collaboration unlock for your \u003cstrong\u003eCisco ISR 4431 and ISR 4451-X Integrated Services Routers\u003c\/strong\u003e. This \u003cstrong\u003eCisco 4400 UC license\u003c\/strong\u003e builds on the IP Base foundation to deliver enterprise-grade voice, video, presence, and instant messaging capabilities including \u003cstrong\u003eCisco Unified Communications Manager (CUCM) integration, multi-protocol voice\/video support (SIP, H.323, MGCP), and secure encrypted media (SRTP)\u003c\/strong\u003e — transforming your branch router into a full-featured collaboration platform.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eAlso referenced as \u003cstrong\u003eSL-44-UC-K9\u003c\/strong\u003e, \u003cstrong\u003eSL-44-UC-K9=\u003c\/strong\u003e, or \u003cstrong\u003eL-SL-44-UC-K9=\u003c\/strong\u003e, this \u003cstrong\u003eCisco ISR 4400 Unified Communications technology package\u003c\/strong\u003e is a perpetual, electronically delivered Right-to-Use (RTU) license. The UC license enables: \u003cstrong\u003eSIP, H.323, and MGCP\u003c\/strong\u003e protocol support for multi-vendor voice and video interoperability, \u003cstrong\u003eCUCM integration\u003c\/strong\u003e for centralized call management and unified dial plans, \u003cstrong\u003eSRTP encryption\u003c\/strong\u003e for secure voice and video streams, \u003cstrong\u003eunified presence and instant messaging\u003c\/strong\u003e for real-time collaboration, \u003cstrong\u003eadvanced voice QoS\u003c\/strong\u003e with jitter minimization for crystal-clear audio, \u003cstrong\u003emulti-party video conferencing\u003c\/strong\u003e natively on the router, and \u003cstrong\u003edual-stack IPv4\/IPv6\u003c\/strong\u003e support. For distributed enterprises, branch offices, and organizations consolidating their UC infrastructure, the \u003cstrong\u003eCisco 4400 UC license\u003c\/strong\u003e delivers carrier-grade voice and video on a single, cost-effective routing platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Key Features --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003e✅ Key Features\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding: 0; list-style: none;\"\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eMulti-protocol voice \u0026amp; video\u003c\/strong\u003e — SIP, H.323, and MGCP support with G.711, G.729, and wideband audio codecs\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eCUCM integration\u003c\/strong\u003e — centralized call management, unified dial plan, and feature configuration via Cisco Unified Communications Manager\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eSRTP encryption\u003c\/strong\u003e — Secure Real-Time Transport Protocol for encrypted voice and video streams with secure authentication\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eUnified presence \u0026amp; IM\u003c\/strong\u003e — real-time presence status and integrated instant messaging across the organization\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eMulti-party video conferencing\u003c\/strong\u003e — native video call and conference capabilities directly on the router platform\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; border-bottom: 1px solid #f5f5f5; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003eAdvanced voice QoS\u003c\/strong\u003e — voice traffic prioritization and jitter minimization for crystal-clear audio on congested links\u003c\/li\u003e\n\u003cli style=\"font-size: 14px; line-height: 1.7; color: #444; padding: 7px 0 7px 20px; position: relative;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #0070d2; font-weight: bold;\"\u003e•\u003c\/span\u003e \u003cstrong\u003ePerpetual RTU license\u003c\/strong\u003e — one-time purchase, right-to-use activation, no recurring subscription or annual renewal fee\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Compatible Platform --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eCompatible Platform\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThe \u003cstrong\u003eSL-44-UC-K9\u003c\/strong\u003e Unified Communications license is exclusively compatible with the \u003cstrong\u003eCisco ISR 4431\u003c\/strong\u003e (all models: \u003cstrong\u003eISR4431\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-AX\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-AXV\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-SEC\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4431-V\/K9\u003c\/strong\u003e) and the \u003cstrong\u003eCisco ISR 4451-X\u003c\/strong\u003e (all models: \u003cstrong\u003eISR4451-X\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4451-AX\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4451-SEC\/K9\u003c\/strong\u003e, \u003cstrong\u003eISR4451-V\/K9\u003c\/strong\u003e). Requires a \u003cstrong\u003euniversalk9 IOS XE image\u003c\/strong\u003e with IP Base foundation. Supports both \u003cstrong\u003eIPv4 and IPv6\u003c\/strong\u003e dual-stack deployments. Not compatible with ISR 4321, ISR 4331, ISR 4351, ISR 4461, or Catalyst 8000 Series routers. For ISR 4331, use \u003cstrong\u003eSL-4330-UC-K9\u003c\/strong\u003e. For ISR 4351, use \u003cstrong\u003eSL-4350-UC-K9\u003c\/strong\u003e. For combined UC + Security + Application features, consider \u003cstrong\u003eSL-44-APP-K9\u003c\/strong\u003e (AppX bundle).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Information Needed --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eInformation Needed\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eTo generate your license file, please send the output of \u003ccode style=\"background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px;\"\u003eshow license udi\u003c\/code\u003e from your Cisco ISR 4400 Series router to \u003cstrong\u003e\u003ca href=\"mailto:support@switchlicense.com\" style=\"color: #0070d2; text-decoration: none;\"\u003esupport@switchlicense.com\u003c\/a\u003e\u003c\/strong\u003e, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: License Delivery --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eLicense Delivery\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eThis \u003cstrong\u003eCisco software license\u003c\/strong\u003e is delivered electronically. Once your device UDI is confirmed, we will send you the \u003cstrong\u003e.lic license file by email\u003c\/strong\u003e. No physical shipment is required — simply install the file on your ISR 4400 Series router and the full Unified Communications feature set is immediately active.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Warranty --\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 style=\"font-size: 16px; font-weight: bold; color: #1a1a1a; border-bottom: 2px solid #e8e8e8; padding-bottom: 10px; margin: 0 0 16px 0; letter-spacing: 0.01em;\"\u003eWarranty\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.75; color: #444; margin: 0;\"\u003eWe provide a \u003cstrong\u003e100% working warranty\u003c\/strong\u003e on all licenses. If the license file does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via \u003cstrong\u003ePayPal\u003c\/strong\u003e for your peace of mind.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section: Part Numbers --\u003e\n\u003cdiv style=\"background: #f5f5f5; border-radius: 6px; padding: 14px 18px; font-size: 13px; color: #555; line-height: 1.8;\"\u003e\n\u003cstrong style=\"color: #1a1a1a;\"\u003ePart Numbers:\u003c\/strong\u003e SL-44-UC-K9  |  L-SL-44-UC-K9  |  SL-44-UC-K9=  |  L-SL-44-UC-K9=\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cisco","offers":[{"title":"Default Title","offer_id":46957831782620,"sku":"L-SL-44-UC-K9","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/6402\/9916\/files\/L-SL-44-UC-K9.jpg?v=1776688987"}],"url":"https:\/\/switchlicense.com\/collections\/isr4000-router-license.oembed?page=3","provider":"Switch License","version":"1.0","type":"link"}