Cisco L-FL-4330-BOOST-K9 | Boost License for ISR 4331 | E-Delivery

About This Product

Buy Cisco L-FL-4330-BOOST-K9 | ISR 4331 Boost Throughput License | E-Delivery

The L-FL-4330-BOOST-K9 is a Cisco ISR 4331 Boost Throughput License — 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 Cisco ISR 4331 boost license 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.

Also referenced as FL-4330-BOOST-K9 or L-FL-4330-BOOST-K9=, this Cisco ISR 4331 throughput boost license is a perpetual feature license that takes the platform beyond the PERF (300 Mbps) tier to its maximum rated aggregate throughput. The BOOST license requires the PERF license (FL-4330-PERF-K9) as a prerequisite — 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 Cisco ISR 4000 Boost license, 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 ISR 4331 BOOST license e-delivery ensures your router operates at its maximum rated performance.

✅ Key Features

• • Maximum platform throughput — raises the ISR 4331 to its highest rated aggregate throughput tier beyond the PERF (300 Mbps) level
• • Requires PERF license — the FL-4330-PERF-K9 must be installed as a prerequisite; BOOST cannot be applied to the base (100 Mbps) license tier
• • Software-based throughput unlock — no hardware module or physical upgrade required; activated entirely through Smart Licensing
• • Applies to all workloads — increased throughput covers routing, firewall, VPN encryption, voice DSP, WAAS, and SD-WAN services concurrently
• • No feature changes — purely a throughput upgrade; technology features remain governed by APP/SEC/UC licenses
• • Combines with HSEC — use with FL-4330-HSEC-K9 for maximum encrypted throughput in VPN-heavy deployments
• • Perpetual license — one-time purchase, no recurring subscription fees
• • Ideal for high-speed fiber WAN links, enterprise SD-WAN hubs, and maximizing ISR 4331 investment for multi-service deployments

Compatible Platform

The L-FL-4330-BOOST-K9 is exclusively compatible with the Cisco ISR 4331 Integrated Services Router running IOS XE. Requires the PERF license (FL-4330-PERF-K9) as a prerequisite. Requires IOS XE software version 16.x or later with Smart Licensing enabled. Throughput tiers: Base = 100 Mbps → PERF = 300 Mbps → PERF + BOOST = maximum platform throughput. Not compatible with ISR 4221, ISR 4321, or ISR 4351. Please verify your router model and current license state before purchase.

Information Needed

To generate your license file, please send the output of show license udi from your Cisco ISR 4331 router to support@switchlicense.com, 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.

License Delivery

This Cisco ISR 4331 Boost throughput license is delivered electronically. Once your device UDI is confirmed, we will send you the license entitlement by email. No physical shipment is required .

This license on sale are available exclusively Traditional License.

Warranty

We provide a 100% working warranty 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 PayPal for your peace of mind.