United StatesName:
Added to cart 28 times recently
In stock - Ready to Ship
$3,861.00
$1,431.0062.9% off
Quantity:
Business price:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
SL-44-APP-K9
AppX License (Paper) for Cisco 4451 and 4431 (System)
TRUSTED, TRIED, PROVEN
Inventory Delivered By
& Verified By
Solutions Powered By
SL-44-APP-K9-AppX License (Paper) for Cisco 4451 and 4431 (System) is a network management software license designed specifically for Cisco's high-performance 4451 and 4431 systems. This physical license enables enterprises to optimize router performance and maintain system integrity with a perpetual, lifetime usage right, delivered via a printed license certificate.
Engineered for IT administrators and enterprise-level use, this license supports the corresponding Cisco systems without dependency on operating systems such as Windows, macOS, or Linux. It is activated offline on a per-device basis and tailored for environments requiring dedicated network management and reliability, making it an ideal solution for large-scale IT management and mission-critical network operations.
SL-44-APP-K9 price is $1,431.00, a 62.9% saving from the Cisco list price of $3,861.00. SL-44-APP-K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for SL-44-APP-K9 for additional pricing. Browse the full Cisco Isr 4000 Licenses series or explore all Cisco products.
A multinational retail chain deploys Cisco 4451 and 4431 routers equipped with the SL-44-APP-K9-AppX license to enable application-aware SD-WAN, real-time WAN optimization and dynamic path selection. Outcome: 30% reduction in VoIP/video latency, 40% lower MPLS costs and consistent checkout performance across 200+ stores.
A global financial institution leverages the SL-44-APP-K9-AppX license on Cisco 4451/4431 to accelerate and secure cloud-hosted trading and analytics platforms with application-level QoS, AES-256 encryption and policy-based routing. Outcome: 20% faster application response, full PCI DSS compliance and end-to-end data protection between sites.
A professional services firm integrates the SL-44-APP-K9-AppX license on Cisco 4451 and 4431 routers across 50 branch offices to optimize video conferencing and off-site backups via application-aware traffic shaping and WAN acceleration. Outcome: 50% bandwidth savings, 25% faster backup windows and seamless team collaboration.
To get the detailed certification, please go to the Compliance Center.
| SL-44-APP-K9 |  FL-4350-PERF-K9 |  FL-4330-HSEC-K9 |  SL-4220-SEC-K9= |  SL-44-SEC-K9 | |
|---|---|---|---|---|---|
| Product Type | Software License | Software License | Software License | Software License | Software License |
| Software Category | Network Management | Network Management | Security | Security | Security |
| License Type | Perpetual | Perpetual | OEM | Subscription | Subscription |
| License Duration | Lifetime | Lifetime | Lifetime | 1 Year | 1 Year |
| Use Case | Enterprise | Enterprise | Enterprise | Enterprise | Enterprise |
| User Count | N/A | N/A | N/A | N/A | N/A |
| Device Count | 1 Device | 1 Device | N/A | 1 Device | 1 Device |
| Platform Compatibility | N/A | Cross-Platform | Cross-Platform | N/A | Cross-Platform |
| Delivery Method | License Certificate | Digital Key | Digital Key | Digital Key | Digital Key |
| Activation Type | Offline Activation | Online Activation | Online Activation | Online Activation | Online Activation |
| Language Support | English | English | English | English | Multilingual |
| Bit Version | N/A | N/A | 64-bit | N/A | 64-bit |
| Cloud Integration | N/A | N/A | N/A | N/A | N/A |
| Software Format | Physical | Downloadable | Downloadable | Downloadable | Downloadable |
| Support Included | Yes | Vendor Support Required | Vendor Support Required | Vendor Support Required | Yes |
| Product Name | SL-44-APP-K9-AppX License (Paper) for Cisco 4451 and 4431 (System) | FL-4350-PERF-K9 | FL-4330-HSEC-K9-U.S. Export Restriction Compliance License for 4330 Series | SL-4220-SEC-K9=-Security License for Cisco ISR 4220 Series | SL-44-SEC-K9-SECURITY LICS FOR ISR 4400 SERIES |
| License Key Included | Yes | Yes | Yes | Yes | Yes |
| ESD (Electronic Software Delivery) | No | Yes | Yes | Yes | Yes |
| Renewable | No | No | No | Yes | Yes |
| Compliance Certifications | N/A | N/A | N/A | ISO 27001 | N/A |
| Product Region | Global | Global | North America | Global | Global |
AppX license enhances ISR 4400 series application performance with minimal setup and predictable results.
Professional-grade B2B usability and smooth deployment.
Reliable activation and stable enterprise operations.
Seamless integration and predictable performance.
Easy management with strong application reliability.
The Cisco AppX License (SKU SL-44-APP-K9) is a perpetual software entitlement delivered as a paper certificate containing an activation key that unlocks advanced AppX features on Cisco 4451 and 4431 routers.
The SL-44-APP-K9 AppX License is compatible exclusively with Cisco 4451-X and 4431 Integrated Services Routers running Cisco IOS XE.
The AppX License activates advanced application visibility, real-time traffic classification, quality of service (QoS), and WAN optimization features on supported routers.
Use the Cisco CLI command “license install <activation-key-file>”, then verify with “show license summary” and save the configuration with “write memory.”
The SL-44-APP-K9 is delivered as a physical paper license certificate; a digital entitlement option is available under alternate SKUs.
The AppX License is perpetual and does not expire, providing continuous access to licensed features without renewal.
No direct upgrade path exists; to convert a term-based license to perpetual, a new SL-44-APP-K9 perpetual entitlement must be purchased.
Enter the activation key printed on the certificate into the router CLI with “license install” and confirm success via “show license status.”
Run “show license summary” or “show license right-to-use” on the router to confirm the AppX License is installed and in use.
Perpetual SL-44-APP-K9 licenses do not require renewal; for term-based licenses, repurchase the term SKU before expiration.
Technical support and software updates require an active Cisco SMARTnet or Solution Support contract and are not bundled with the license itself.
Yes, perpetual AppX Licenses can be transferred between eligible devices under the same SMARTnet account by submitting a license transfer request through the Cisco License Portal.
Delivery generally takes 3–5 business days after order confirmation, depending on your region and reseller logistics.
Pricing varies by region, currency, and volume; contact an authorized Cisco partner or reseller for a formal quote.
You can purchase the SL-44-APP-K9 through Cisco’s official website, authorized Cisco partners, or certified resellers.
Ensure your Cisco 4451 or 4431 router is running Cisco IOS XE 16.6.4 or later and has adequate memory for AppX feature activation.