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ISR4451-X-VSEC/K9
Cisco ISR 4451 VSEC Bundle, PVDM4-64 w/ UC,SEC Lic,CUBE- 25
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Since 2016, Enterprise-Trusted
Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
ISR4451-X-VSEC/K9 is a high-performance, modular enterprise router engineered with a robust architecture that integrates advanced security, voice, video, and WAN optimization services. Designed for critical branch applications, it offers redundant power options and versatile power sources while supporting a modular platform that accommodates network interface expansion and integrated services.
This router features multiple WAN/LAN interfaces with 10/100/1000 Ethernet connectivity and full VPN support—including IPSec, SSL VPN, DMVPN, and FlexVPN—to ensure secure, reliable data transfers. With an assured throughput capacity of up to 2 Gbps, built-in firewall protection, high availability, and comprehensive performance optimizations, the ISR4451-X-VSEC/K9 is ideally suited for enterprise-grade, mission-critical networking deployments.
ISR4451-X-VSEC/K9 price is $16,232.00, a 55.3% saving from the Cisco list price of $36,286.00. ISR4451-X-VSEC/K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for ISR4451-X-VSEC/K9 for additional pricing. Browse the full Router Isr 4000 series or explore all Cisco products.
A global financial services firm deploys Cisco ISR4451-X-VSEC/K9 with SEC license to establish DMVPN and IPsec tunnels across 150 branch offices. The embedded VSEC security engine performs real-time threat inspection and URL filtering at line rate, ensuring PCI DSS and SOX compliance. Outcome: 99.99% uptime, 80% reduction in security incidents, and centralized policy enforcement with minimal latency.
A multinational manufacturing company leverages ISR4451-X-VSEC/K9 equipped with PVDM4-64 DSP modules and UC license to integrate VoIP, video conferencing, and contact-center services into a single platform. Automated voice compression and echo cancellation deliver crystal-clear HD calls while on-premises survivability ensures continuous operation during WAN outages. Outcome: 40% lower TCO on voice infrastructure, seamless global collaboration, and 99.95% call availability.
A large healthcare provider implements Cisco ISR4451-X-VSEC/K9 with CUBE-25 to manage 2,000 concurrent SIP trunks across multiple campuses. The embedded Session Border Controller provides secure interconnect with carrier networks, advanced call routing, and real-time signaling encryption. Outcome: streamlined SIP trunk provisioning, 60% reduction in recurring telephony costs, and HIPAA-compliant voice security.
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Avg. response under 30 mins
| ISR4451-X-VSEC/K9 |  ISR4461/K9 |  ISR4331-AX/K9 |  C1-CISCO4331/K9 |  ISR4351-DNA | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Modular | Modular | Fixed / Modular | Modular | Modular |
| Built-in Security Features | Firewall / Intrusion Prevention / Malware Protection | Firewall, Intrusion Prevention, Malware Protection | Firewall / Intrusion Prevention / Malware Protection | Firewall, Intrusion Prevention, Malware Protection | Firewall / Intrusion Prevention / Malware Protection |
| Compliance Standards | FCC / CE / UL | FCC, CE, RoHS | FCC / CE / UL | FCC, CE | FCC / CE |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| 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 / VoIP / IPv6 Compatible / Firewall / MPLS | VPN / Firewall / IPv6 Compatible | VPN / IPv6 Compatible / Firewall / WAN Optimization / Voice / Video | VPN, Voice, Video, Integrated Services, Firewall | VPN / Firewall / Voice / Video / WAN Optimization |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 1 GB | 512 MB | 512 MB | 2 GB | 256 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| High Availability Support | Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice, Video, WAN Optimization, Security | Voice, Video, WAN Optimization | Voice / Video / WAN Optimization | Voice, Video, WAN Optimization | Voice / Video / WAN Optimization |
| Interface Ports | RJ-45, SFP | RJ-45, SFP | RJ-45 / SFP | RJ-45, SFP | RJ-45 / SFP |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | Modular LAN |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 8 GB | 4 GB | 4 GB | 4 GB | 4 GB |
| Modular Slots Available | 2 Slots | 3+ Slots | 3+ Slots | 2 Slots | 2 Slots |
| Network Protocols | IPv4, IPv6 | IPv4, IPv6 | IPv4 / IPv6 | OSPF, BGP, EIGRP, RIP, MPLS | IPv4 / IPv6 |
| Power | 335 W | 350 W | 65 Watts | 115W | 115W |
| Power Source | AC Power Supply / DC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply | AC Power Supply / Redundant | AC Power Supply / Redundant |
| Product Name | Cisco ISR4451-X-VSEC/K9 | Cisco ISR 4461/K9 Integrated Services Router | Cisco ISR4331-AX/K9 | Cisco 4331 Integrated Services Router | Cisco ISR4351-DNA |
| Product Type | Enterprise Router | Integrated Services Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | Cisco IOS XE CLI / Web GUI | SSH / Telnet / SNMP | SSH / Telnet / SNMP | Cisco SDM, SSH, Telnet | CLI / SNMP / Cisco DNA Center |
| Routing Protocols | OSPF / BGP / EIGRP / IS-IS / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / MPLS / RIP / Static Routing | OSPF / BGP / EIGRP / MPLS / IS-IS / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing |
| Speed/Capacity | Gigabit | Gigabit | Gigabit | Gigabit | Gigabit |
| Stacking Capability | Yes | Yes | No | Yes | No |
| Throughput Capacity | 2 Gbps | 2 Gbps | 0.15 Gbps | 100 Mbps | 1 Gbps |
| Use Case | Enterprise | Enterprise | Enterprise / Branch | Enterprise / Branch | Enterprise |
| VPN Support | IPSec / SSL VPN / DMVPN / FlexVPN | IPSec / SSL VPN / DMVPN / FlexVPN | IPSec / SSL VPN / DMVPN / FlexVPN | IPSec / SSL VPN / DMVPN / FlexVPN | IPSec / SSL VPN / DMVPN / FlexVPN / N/A |
| WAN Configuration | Dual WAN | Dual WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | 4 WAN | 2 WAN | 2 WAN | 2 WAN | Modular WAN |
| Wireless Support | No | No | No | No | No |
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.
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.
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.
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.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Excellent voice and security performance combined. Call quality remained stable.
Handles UC and security workloads without issues. Very robust platform.
Cisco ISR delivers reliable voice services at scale. Impressive throughput.
Great solution for secure unified communications. No downtime experienced.
Strong performance for enterprise voice deployments.
The Cisco ISR 4451 VSEC Bundle is an integrated services router with advanced security (VSEC), UC licensing, a PVDM4-64 voice DSP module, and CUBE-25 for session border control. It delivers secure connectivity, unified communications, and high-performance routing in a single platform.
The router features a quad-core 2.7 GHz CPU, up to 4 Gbps aggregate throughput (up to 750 Mbps encrypted), 8 GB default DRAM (expandable to 16 GB), and modular service slots for WAN and security expansion.
The PVDM4-64 module supports up to 64 DSP channels for voice, conferencing, transcoding, and media resource functions, enabling high-density telephony and multimedia services.
The UC license enables voice and video call processing, voicemail integration, IVR, and SIP trunking, optimizing collaboration workflows and reducing the need for separate voice gateways.
The SEC license activates integrated firewall, intrusion prevention (IPS), VPN, URL filtering, and advanced malware protection (AMP) to safeguard data, applications, and users across the WAN.
CUBE-25 provides session border controller functionality for up to 25 simultaneous SIP sessions, facilitating secure VoIP interconnectivity between enterprise and service provider networks.
Out of the box, the ISR 4451 delivers up to 2 Gbps of routing performance, 750 Mbps of firewall throughput, and wire-speed LAN connectivity for demanding enterprise applications.
Yes, the platform supports modular service cards, additional memory, and optional PVDM modules, allowing you to scale CPU, memory, voice channels, and security functions as needs evolve.
The router supports GE and 10GE WAN ports, T1/E1, T3/E3, DSL, and 4G LTE connectivity via modular interface cards, accommodating diverse network architectures.
It supports dual power supplies, stateful switchover (SSO) with VRF-aware failover, and redundant WAN links, delivering continuous operations and minimal downtime.
This bundle suits branch offices, remote sites, and data centers requiring converged voice, security, and WAN services with carrier-grade reliability.
With a software upgrade, the platform acts as a Cisco SD-WAN hub or spoke, offering centralized policy, encrypted overlays, path optimization, and simplified operations.
You can use Cisco DNA Center, Cisco IOS XE CLI, Cisco Prime Infrastructure, and REST APIs for automated provisioning, policy enforcement, and real-time analytics.
The bundle includes a bundled VSEC license, UC license, SEC license, and a hardware PVDM4-64 module; additional feature licenses can be added via Cisco’s Smart Licensing portal.
The router operates on 100–240V AC or 36–72V DC, consumes up to 145W, and functions in 0°C to 40°C with relative humidity between 5% and 85% non-condensing.
Cisco offers a limited lifetime hardware warranty, plus optional SMARTnet® support for 24x7 technical assistance, software updates, and advanced replacement services.
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