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ISR4451-X-SEC/K9
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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:
Ready to Ship
- Brand:
- Cisco
- GTIN:
- 0818250391645
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
- 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
- Product Type
- Enterprise Router
- Brand
- Cisco
- VPN Support
- IPSec / SSL VPN / DMVPN / N/A
- Power Source
- AC Power Supply / Redundant
- Routing Protocols
- OSPF / BGP / EIGRP / MPLS / IPv6 / Static Routing
- Architecture
- Modular
- WAN Configuration
- Dual WAN
- WAN Ports
- 2 WAN
- LAN Ports
- 4 LAN Ports
- Ethernet Technology
- 10/100/1000
- Connectivity Type
- Wired
- Network Protocols
- Ethernet, Fast Ethernet, Gigabit Ethernet
- Remote Management
- SSH, Telnet, SNMP
- Compliance Standards
- FCC, CE, UL
- Wireless Support
- No
- Speed/Capacity
- Gigabit
- Firewall Features
- Yes
- Features
- VPN, IPv6 Compatible, Firewall, Intrusion Prevention System
- Use Case
- Enterprise
- Management
- Managed
- Form Factor
- Rack-mount
- Integrated Services
- Voice, Video, WAN Optimization
- High Availability Support
- Supported
- Throughput Capacity
- 2 Gbps
- QoS Features
- Supported
- Built-in Security Features
- Firewall, Intrusion Prevention, Malware Protection
- Expansion Slots
- NIM, EHWIC
- Modular Slots Available
- 2 Slots
- Stacking Capability
- No
- 5G Support
- No
- Memory
- 4 GB
- Flash Memory
- 512 MB
- Interface Ports
- RJ-45, SFP
- Power
- 350 W
- Device Type
- Router
- Product Name
- Cisco ISR4451-X-SEC/K9
- Height
- 1.75 in
- Width
- 17.5 in
- Depth
- 14.1 in
- Weight
- 21 lbs
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.
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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 |
| 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 |
| 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 |
| Speed/Capacity | Gigabit | Gigabit | Gigabit | Gigabit | Gigabit |
| Stacking Capability | No | No | No | Yes | No |
| 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 |
| Width | 17.5 in | 17.41 inches | 17.6 inches | 17.5 inches | 17.2 inches |
| Wireless Support | No | No | No | No | No |
Compliance & Warranty
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
C
Christopher Nolan
4
Excellent throughput with security enabled. Handles heavy traffic without bottlenecks.
M
Matthew Richardson
5
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
4
Security services run smoothly at high speeds. Impressive platform.
A
Alan Prescott
5
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.
Can I upgrade the ISR4451-X-SEC/K9 performance and features?
Yes. You can add Performance-on-Demand (PoD) licenses to increase throughput, activate UC features, or enable additional security services as needed.
What deployment models support the Cisco ISR 4451 Security bundle?
Deploy as a secure WAN edge, data center distribution router or cloud-on-ramp gateway, integrating with Cisco DNA Center and SD-WAN architectures.
Is the ISR4451-X-SEC/K9 compatible with Cisco SD-WAN?
Yes. The ISR4451-X-SEC/K9 is fully SD-WAN capable, providing centralized policy control, dynamic path selection and embedded security for WAN edge deployments.
What are the hardware specifications of the Cisco ISR 4451 Sec bundle?
The router features four onboard 10/100/1000 Ethernet ports, two SM slots, two NIM slots, 8 GB default DRAM, 8 GB flash memory, and dual redundant power supplies.
What warranty and support options are available?
Standard Cisco 1-year limited hardware warranty applies; Cisco SMARTnet contracts are available for 24/7 support, software updates, and advanced replacement services.
How does the SEC license differ from the APPX license?
The SEC license activates advanced security functions (firewall, IPS, AMP), while the APPX license enables application services like Cisco Application Experience and firewall throughput upgrades.
What power requirements does the ISR4451-X-SEC/K9 have?
The router supports dual AC power supplies at 100–240 VAC, consumes up to 115W nominal, and is compliant with ENERGY STAR® efficiency standards.
How do I manage and monitor the Cisco ISR 4451 Sec bundle?
Manage via Cisco IOS XE CLI, Cisco DNA Center, or Cisco Security Manager; monitor security events using Cisco SecureX and integrated SNMP or syslog.
What use cases are ideal for the ISR4451-X-SEC/K9?
Ideal for large branch offices, data centers and cloud-on-ramps requiring high-performance routing with integrated security, WAN optimization and application visibility.
Can the ISR4451-X-SEC/K9 support virtualization services?
Yes. It runs Cisco Universal IOS XE and supports Network Functions Virtualization (NFV) with containerized security and service chaining for third-party VNFs.
How does the Cisco ISR 4451 Sec bundle enhance network security posture?
By consolidating firewall, IPS, VPN, AMP and URL Filtering in a single platform, it reduces attack surface, simplifies management and accelerates threat response.