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Security license ensures ISR 4350 series operates securely with minimal administrative effort.
SL-4350-SEC-K9
SECURITY LICS FOR ISR 4350 SERIES
FEATURED DEAL
Name:
SL-4350-SEC-K9
- Description:
- SECURITY LICS FOR ISR 4350 SERIES
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 882658731723
- Condition:
- Warranty:
- 3
- List Price:
$3,009.00
- Price:
$822.0072.7% off
Quantity:
1
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SL-4350-SEC-K9 Overview
SL-4350-SEC-K9-SECURITY LICS FOR ISR 4350 SERIES is a security software license designed specifically for the ISR 4350 Series, catering to enterprise network security and IT management use cases. This license falls under the Security category, is offered as a perpetual license with a lifetime duration, and is delivered digitally with an online activation process that ensures swift deployment and compliance with advanced security standards. It supports cross-platform compatibility, making it ideal for environments using Windows, macOS, Linux, Android, and more.
SL-4350-SEC-K9-SECURITY LICS FOR ISR 4350 SERIES provides a robust licensing solution that meets the needs of SMBs, enterprises, and IT administrators seeking to enhance network protection. With digital key delivery and English language support, the product is optimized for secure IT management and network operations, ensuring that organizations can maintain streamlined security across their infrastructure.
SL-4350-SEC-K9 price is $822.00, a 72.7% saving from the Cisco list price of $3,009.00. SL-4350-SEC-K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for SL-4350-SEC-K9 for additional pricing. Browse the full Cisco Isr 4000 Licenses series or explore all Cisco products.
SL-4350-SEC-K9 Specifications
- Use Case
- Enterprise
- Product Type
- Software License
- License Duration
- Lifetime
- User Count
- N/A
- Device Count
- N/A
- Delivery Method
- Digital Key
- Activation Type
- Online Activation
- Bit Version
- N/A
- Cloud Integration
- N/A
- License Key Included
- Yes
- ESD (Electronic Software Delivery)
- Yes
- Renewable
- No
- Compliance Certifications
- N/A
- Product Region
- Global
- Language Support
- English
- License Type
- Perpetual
- Software Format
- Downloadable
- Support Included
- Yes
- Platform Compatibility
- Cross-Platform
- Software Category
- Security
- Product Name
- SL-4350-SEC-K9-SECURITY LICS FOR ISR 4350 SERIES
SL-4350-SEC-K9 Use Case
Secure Branch Connectivity with Integrated Firewall and IPS
A global retail chain deploys the SL-4350-SEC-K9 security license on Cisco ISR 4350 routers to unify stateful firewall, intrusion prevention (IPS) and IPsec VPN at 250+ storefronts. Outcome: real-time threat detection, 40% faster secure provisioning and enforced PCI-DSS compliance, ensuring uninterrupted customer transactions and centralized policy management.
Multi-Site SD-WAN and Segmentation for Financial Compliance
A multinational bank leverages the SL-4350-SEC-K9 license on ISR 4350 Series to enable secure SD-WAN overlays with zone-based segmentation across 100 branch offices. Outcome: 99.99% uptime, end-to-end encryption for SWIFT traffic, automated compliance reporting (SOX, GDPR) and a 50% reduction in operational overhead.
IoT Edge Security for Industrial Control Systems
A manufacturing enterprise integrates SL-4350-SEC-K9 on Cisco ISR 4350 routers to isolate SCADA networks and enforce advanced threat policies for hundreds of IoT sensors and PLCs. Outcome: micro-segmentation of OT/IT traffic, automated anomaly detection, and a 60% drop in vulnerability exposure, delivering uninterrupted production and regulatory adherence.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
 SL-4350-SEC-K9 |  FL-44-PERF-K9 |  SL-44-APP-K9 |  FL-4330-PERF-K9 |  L-SL-44-APP-K9= | |
|---|---|---|---|---|---|
| Product Type | Software License | Software License | Software License | Software License | Software License |
| Software Category | Security | Network Management | Network Management | Network Management | Network Management |
| License Type | Perpetual | Perpetual | Perpetual | OEM | Perpetual |
| License Duration | Lifetime | Lifetime | Lifetime | Lifetime | Lifetime |
| Use Case | Enterprise | Enterprise | Enterprise | Business | Enterprise |
| User Count | N/A | N/A | N/A | 1 User | N/A |
| Device Count | N/A | 1 Device | 1 Device | 1 Device | Unlimited |
| Platform Compatibility | Cross-Platform | N/A | N/A | Windows / macOS / Linux / Android | Cross-Platform |
| Delivery Method | Digital Key | Digital Key | License Certificate | Digital Key | Digital Key |
| Activation Type | Online Activation | Online Activation | Offline Activation | Online Activation | Online Activation |
| Language Support | English | N/A | English | English | Multilingual |
| Bit Version | N/A | N/A | N/A | 64-bit | N/A |
| Cloud Integration | N/A | N/A | N/A | N/A | N/A |
| Software Format | Downloadable | Downloadable | Physical | Downloadable | Downloadable |
| Support Included | Yes | Vendor Support Required | Yes | Yes | Vendor Support Required |
| Product Name | SL-4350-SEC-K9-SECURITY LICS FOR ISR 4350 SERIES | FL-44-PERF-K9-FL-44-PERF-K9 Increases the performance from base performance 1 Gbps to 2 Gbps | SL-44-APP-K9-AppX License (Paper) for Cisco 4451 and 4431 (System) | FL-4330-PERF-K9-FL-4330-PERF-K9 | L-SL-44-APP-K9=-APPX LICENSE 4431/4451 WITH WAAS/VWAAS 1300/2500 CONNS RTU |
| License Key Included | Yes | Yes | Yes | Yes | Yes |
| ESD (Electronic Software Delivery) | Yes | Yes | No | Yes | Yes |
| Renewable | No | No | No | No | No |
| Compliance Certifications | N/A | N/A | N/A | N/A | N/A |
| Product Region | Global | Global | Global | Global | Global |
Reviews & Ratings
A
Amelia Ward
5
Professional-grade usability and predictable B2B security performance.
B
Benjamin Brooks
5
Smooth deployment with strong reliability.
G
Grace Hayes
5
Stable enterprise-grade protection and predictable operations.
O
Owen Ward
5
Easy activation with minimal setup complexity.
Questions & Answers
What is the SL-4350-SEC-K9 security license?
The SL-4350-SEC-K9 is a Cisco security feature license that enables advanced threat defense, firewall, IPS, and VPN services on ISR 4350 Series routers.
Which ISR 4350 models support SL-4350-SEC-K9?
SL-4350-SEC-K9 is compatible with all Cisco ISR 4351, ISR 4351P, ISR 4351-AX, ISR 4351P-AX, and ISR 4351-AX-K9 hardware.
What security features are unlocked by SL-4350-SEC-K9?
This license activates Cisco Firepower firewall, intrusion prevention system (IPS), URL filtering, malware defense, and IPSec VPN capabilities.
How do I install the SL-4350-SEC-K9 license?
Install the license by entering the product activation key via CLI (‘license install <key>’), then reload the router to enable features.
Can I upgrade from the base SEC license to SL-4350-SEC-K9?
Yes. Purchase the SEC-K9 upgrade SKU, install the new license key, and reload the device to upgrade from base to full security feature set.
What performance impact does SL-4350-SEC-K9 have?
When properly licensed, ISR 4350 routers maintain up to 2 Gbps firewall throughput and 1.2 Gbps IPS performance under full security load.
Which Cisco IOS XE versions support SL-4350-SEC-K9?
SL-4350-SEC-K9 requires Cisco IOS XE 16.9 or later. Verify compatibility with the release notes before deployment.
How do I activate the security license after installation?
After installing the key, use the CLI command ‘license activate securityk9’ and confirm with ‘show license status’ to complete activation.
What licensing model applies to SL-4350-SEC-K9?
SL-4350-SEC-K9 uses a perpetual license model with optional annual software and support subscription (Smart Net Total Care).
How can I verify my SL-4350-SEC-K9 license status?
Run ‘show license all’ on the ISR to view license state, feature enabled status, and expiration date of any subscriptions.
How do I renew or extend my security license?
Renew the Smart Care subscription via Cisco Commerce Workspace or your reseller before expiration to maintain software updates and support.
What support services are included with SL-4350-SEC-K9?
A valid Smart Net Total Care contract provides 24×7 hardware replacement, software updates, and access to Cisco TAC for troubleshooting.
Are there any prerequisites for SL-4350-SEC-K9 installation?
Ensure the ISR is running a compatible IOS XE version, has sufficient flash and DRAM, and no conflicting feature licenses are active.
How do I order additional SL-4350-SEC-K9 licenses?
Contact your Cisco authorized reseller or order through Cisco Commerce by specifying the SL-4350-SEC-K9 SKU and required quantity.
How many VPN tunnels does SL-4350-SEC-K9 support?
The license supports up to 250 IPsec VPN tunnels (site-to-site and remote access) with hardware-accelerated encryption.
Does SL-4350-SEC-K9 include advanced malware protection?
Yes. When paired with Cisco Advanced Malware Protection subscriptions, SL-4350-SEC-K9 enables real-time file and threat analysis.