United States$5,000,000+
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Christopher Nolan
5
Excellent throughput with security enabled. Handles heavy traffic without bottlenecks.
ISR4451-X-SEC/K9
Cisco ISR 4451 Sec bundle w/SEC license
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Name:
ISR4451-X-SEC/K9
- Description:
- Cisco ISR 4451 Sec bundle w/SEC license
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 818250391645
- Condition:
- Warranty:
- 3
- List Price:
$30,123.00
- Price:
$13,474.0055.3% off
Quantity:
1
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ISR4451-X-SEC/K9 Overview
ISR4451-X-SEC/K9 is a modular enterprise router that provides robust integrated services with multiple WAN and LAN interfaces, including dual WAN and four LAN ports supporting 10/100/1000 Ethernet. It comes equipped with flexible power options featuring an AC power supply with redundant configurations and offers modular slots for expansion, ensuring support for advanced VPN features and high-performance throughput up to 2 Gbps.
Engineered for enterprise use cases, this router delivers enhanced security with built-in firewall, intrusion prevention, and malware protection, while its integrated services for voice, video, and WAN optimization meet diverse networking demands. Its design prioritizes redundancy and reliable performance, making it ideal for environments that require secure, scalable, and high-availability connectivity.
ISR4451-X-SEC/K9 price is $13,474.00, a 55.3% saving from the Cisco list price of $30,123.00. ISR4451-X-SEC/K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for ISR4451-X-SEC/K9 for additional pricing. Browse the full Router Isr 4000 series or explore all Cisco products.
ISR4451-X-SEC/K9 Specifications
- Form Factor
- Rack-mount
- Ethernet Technology
- 10/100/1000
- Memory
- 4 GB
- Flash Memory
- 512 MB
- Weight
- 21 lbs
- Width
- 17.5 in
- Height
- 1.75 in
- Product Type
- Enterprise Router
- WAN Configuration
- Dual WAN
- WAN Ports
- 2 WAN
- Wi-Fi Standard
- N/A
- Connectivity Type
- Wired
- Wireless Support
- No
- Firewall Features
- Yes
- Management
- Managed
- Safety
- N/A
- EMC
- N/A
- Telecom
- N/A
- QoS Features
- Supported
- Modular Slots Available
- 2 Slots
- Stacking Capability
- No
- 5G Support
- No
- Device Type
- Router
- Remote Management
- SSH, Telnet, SNMP
- Integrated Services
- Voice, Video, WAN Optimization
- High Availability Support
- Supported
- Broadband
- N/A
- Use Case
- Enterprise
- LAN Ports
- 4 LAN Ports
- VPN Support
- IPSec / SSL VPN / DMVPN / N/A
- Built-in Security Features
- Firewall, Intrusion Prevention, Malware Protection
- Power Source
- AC Power Supply / Redundant
- Compliance Standards
- FCC, CE, UL
- Architecture
- Modular
- Speed/Capacity
- Gigabit
- Power
- 350 W
- Throughput Capacity
- 2 Gbps
- Interface Ports
- RJ-45, SFP
- Expansion Slots
- NIM, EHWIC
- Routing Protocols
- OSPF / BGP / EIGRP / MPLS / IPv6 / Static Routing
- Network Protocols
- Ethernet, Fast Ethernet, Gigabit Ethernet
- Features
- VPN, IPv6 Compatible, Firewall, Intrusion Prevention System
- Product Name
- Cisco ISR4451-X-SEC/K9
- Depth
- 14.1 in
ISR4451-X-SEC/K9 Use Case
Secure SD-WAN Connectivity for Multi-Location Retail Networks
A global retail chain with 300+ stores deployed the ISR4451-X-SEC/K9 Cisco ISR 4451 Sec bundle with SEC license as the SD-WAN edge to unify MPLS and Internet links. Integrated Cisco Secure Firewall, IPS, and URL filtering ensure consistent threat prevention across branches. Outcome: 35% faster application performance, 25% reduction in WAN costs, and centralized policy orchestration via Cisco vManage, delivering enterprise-grade security and high-availability connectivity.
High-Performance Encrypted VPN for Financial Enterprise Backbone
A multinational financial services firm implemented the ISR4451-X-SEC/K9 Cisco ISR 4451 Sec bundle with SEC license at its regional hubs to terminate thousands of IPsec tunnels with AES-256/GCM encryption at line rate. Built-in Secure Boot, Trust Anchor module, and FIPS-compliant crypto accelerate compliance with PCI DSS and GDPR. Outcome: 2 Gbps+ aggregate VPN throughput, end-to-end data confidentiality, and unified threat management that meets stringent regulatory mandates.
Edge Security and IoT Segmentation in Smart Manufacturing Plants
An automotive OEM integrated the ISR4451-X-SEC/K9 Cisco ISR 4451 Sec bundle with SEC license at factory network edges to isolate OT/IoT devices from corporate IT. Advanced segmentation via Cisco TrustSec, real-time intrusion prevention, and malware sandboxing protect SCADA and robotic control systems. Outcome: 60% reduction in lateral threat propagation, streamlined compliance with industrial security frameworks, and real-time visibility into IoT traffic for proactive risk mitigation.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 ISR4451-X-SEC/K9 |  ISR4331/K9 |  ISR4221-AX/K9 |  ISR4321-AXV/K9 |  ISR4221-SEC/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Modular | Modular | Fixed | Fixed | Fixed |
| Broadband | N/A | N/A | N/A | N/A | N/A |
| Built-in Security Features | Firewall, Intrusion Prevention, Malware Protection | Firewall, Intrusion Prevention, Malware Protection | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention |
| Compliance Standards | FCC, CE, UL | FCC, CE, RoHS | FCC / CE / UL | FCC, CE | IEEE 802.3, FCC, CE |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | 14.1 in | 16.34 inches | 12 inches | 18.3 inches | 11.3 inches |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | N/A | CISPR22, FCC Part 15 | CISPR 22 |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Expansion Slots | NIM, EHWIC | EHWIC / NIM | EHWIC / NIM | NIM / EHWIC | EHWIC |
| Features | VPN, IPv6 Compatible, Firewall, Intrusion Prevention System | VPN, IPv6 Compatible, Firewall, Integrated Services | VPN / Firewall / IPv6 Compatible | Mesh / VPN / VoIP / IPv6 Compatible / Firewall / MPLS | VPN / IPv6 Compatible / Firewall |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 512 MB | 4 GB | 256 MB | 256 MB | 1 GB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount / Desktop | Desktop |
| Height | 1.75 in | 1.75 inches | 1.75 inches | 1.75 inches | 1.73 inches |
| High Availability Support | Supported | Supported | Not Supported | Supported | Supported |
| Integrated Services | Voice, Video, WAN Optimization | Voice, Video, WAN Optimization | Voice / Video / WAN Optimization | Voice / Video / WAN Optimization | Voice / Video |
| Interface Ports | RJ-45, SFP | RJ-45, SFP | RJ-45, SFP | RJ-45 / SFP | RJ-45 |
| LAN Ports | 4 LAN Ports | Modular LAN | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 4 GB | 4 GB | 1 GB | 512 MB | 1 GB |
| Modular Slots Available | 2 Slots | 2 Slots | 1 Slot | 2 Slots | 1 Slot |
| Network Protocols | Ethernet, Fast Ethernet, Gigabit Ethernet | IPv4, IPv6, MPLS | IPv4, IPv6, MPLS | IPv4, IPv6 | IPv4, IPv6 |
| Power | 350 W | 150W | 70 Watt | 54 W | 65W |
| Power Source | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply | AC Power Supply / Redundant | AC Power Supply / Redundant |
| Product Name | Cisco ISR4451-X-SEC/K9 | Cisco ISR4331/K9 | Cisco ISR 4221 Integrated Services Router | Cisco ISR4321-AXV/K9 | Cisco ISR 4221-SEC/K9 |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | SSH, Telnet, SNMP | Telnet, SSH, SNMP, NETCONF | SSH, Telnet, SNMP | SSH, Telnet, SNMP | SSH, Telnet, SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / MPLS / IPv6 / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / MPLS / IS-IS / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing / MPLS |
| Safety | N/A | N/A | N/A | RoHS Compliant | UL, cUL |
| Speed/Capacity | Gigabit | Gigabit | Gigabit | Gigabit | Gigabit |
| Stacking Capability | No | No | No | Yes | No |
| Telecom | N/A | N/A | N/A | TIA/EIA | FCC Part 15 |
| Throughput Capacity | 2 Gbps | 100 Mbps | 0.25 Gbps | 200 Mbps | 300 Mbps |
| Use Case | Enterprise | Enterprise | Enterprise / Branch Office | Enterprise / Branch | Enterprise |
| VPN Support | IPSec / SSL VPN / DMVPN / N/A | IPSec / SSL VPN / DMVPN / FlexVPN | IPSec / SSL VPN | IPSec / SSL VPN / DMVPN / FlexVPN | IPSec / SSL VPN / DMVPN / FlexVPN |
| WAN Configuration | Dual WAN | Dual WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | 2 WAN | 2 WAN | 2 WAN | 2 WAN | 2 WAN |
| Weight | 21 lbs | 14.3 lbs | 10 lbs | 13.2 lbs | 8.6 lbs |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | 17.5 in | 17.41 inches | 17.6 inches | 17.5 inches | 17.2 inches |
| Wireless Support | No | No | No | No | No |
Reviews & Ratings
M
Matthew Richardson
4
Powerful ISR with strong security features. Very stable in production.
D
David Armstrong
5
Great performance for enterprise edge deployments. Cisco quality throughout.
P
Paul Henderson
3
Security services run smoothly at high speeds. Impressive platform.
A
Alan Prescott
4
Reliable and scalable router. Worth the investment for larger sites.
Questions & Answers
What is the Cisco ISR 4451 Sec bundle w/SEC license (ISR4451-X-SEC/K9)?
The Cisco ISR 4451 Sec bundle w/SEC license (ISR4451-X-SEC/K9) is an enterprise-class integrated services router that delivers high-performance WAN connectivity with built-in security, including firewall, VPN and intrusion prevention.
Which security features are included in the ISR4451-X-SEC/K9 bundle?
The bundle includes Cisco Firewall, IPS, Advanced Malware Protection (AMP), URL Filtering, and Site-to-Site/IPsec VPN, all activated by the SEC license for comprehensive edge security.
What throughput can I expect from the Cisco ISR 4451 Security bundle?
The ISR4451-X-SEC/K9 delivers up to 2 Gbps stateful firewall throughput and 750 Mbps encrypted VPN throughput, ensuring secure and scalable branch connectivity.
How do I activate the SEC license on ISR4451-X-SEC/K9?
Activate the SEC license via Cisco Smart Software Manager by registering your PAK code and assigning entitlements to your router’s unique device ID.