United States$5,000,000+
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Jonathan Pierce
5
Excellent voice and security performance combined. Call quality remained stable.
ISR4451-X-VSEC/K9
Cisco ISR 4451 VSEC Bundle, PVDM4-64 w/ UC,SEC Lic,CUBE- 25
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Name:
ISR4451-X-VSEC/K9
- Description:
- Cisco ISR 4451 VSEC Bundle, PVDM4-64 w/ UC,SEC Lic,CUBE- 25
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 818250086442
- Condition:
- Warranty:
- 3
- List Price:
$36,286.00
- Price:
$16,232.0055.3% off
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1
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ISR4451-X-VSEC/K9 Overview
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.
ISR4451-X-VSEC/K9 Specifications
- Product Type
- Enterprise Router
- VPN Support
- IPSec / SSL VPN / DMVPN / FlexVPN
- Power Source
- AC Power Supply / DC Power Supply / Redundant
- Routing Protocols
- OSPF / BGP / EIGRP / IS-IS / RIP / Static Routing
- Broadband
- N/A
- Architecture
- Modular
- WAN Configuration
- Dual WAN
- WAN Ports
- 4 WAN
- LAN Ports
- 4 LAN Ports
- Ethernet Technology
- 10/100/1000
- Wi-Fi Standard
- N/A
- Connectivity Type
- Wired
- Network Protocols
- IPv4, IPv6
- Remote Management
- Cisco IOS XE CLI / Web GUI
- Compliance Standards
- FCC / CE / UL
- Wireless Support
- No
- Speed/Capacity
- Gigabit
- Firewall Features
- Yes
- Features
- VPN / VoIP / IPv6 Compatible / Firewall / MPLS
- Use Case
- Enterprise
- Management
- Managed
- Form Factor
- Rack-mount
- Integrated Services
- Voice, Video, WAN Optimization, Security
- High Availability Support
- Supported
- Safety
- N/A
- EMC
- N/A
- Telecom
- N/A
- 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
- Yes
- 5G Support
- No
- Memory
- 8 GB
- Flash Memory
- 1 GB
- Interface Ports
- RJ-45, SFP
- Power
- 335 W
- Device Type
- Router
- Product Name
- Cisco ISR4451-X-VSEC/K9
- Height
- 2.91 inches
- Width
- 17.32 inches
- Depth
- 18.03 inches
- Weight
- 29.76 lbs
ISR4451-X-VSEC/K9 Use Case
Secure Multi-Site WAN with Integrated VSEC on ISR4451-X-VSEC/K9
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.
High-Definition Unified Communications Using PVDM4-64 with UC License
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.
Scalable SIP Trunking & SBC Services with CUBE-25
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.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 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 |
| 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 / 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 |
| Depth | 18.03 inches | 20 inches | N/A | 16.5 inches | N/A |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | FCC / CE | FCC Compliant | N/A |
| 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 |
| Height | 2.91 inches | 1.73 inches | N/A | 1.75 inches | N/A |
| 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 |
| Safety | N/A | N/A | UL / IEC | UL Listed | N/A |
| Speed/Capacity | Gigabit | Gigabit | Gigabit | Gigabit | Gigabit |
| Stacking Capability | Yes | Yes | No | Yes | No |
| Telecom | N/A | N/A | TIA/EIA | TIA/EIA | N/A |
| 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 |
| Weight | 29.76 lbs | 25 lbs | N/A | 17.6 lbs | N/A |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | 17.32 inches | 17.5 inches | N/A | 17.3 inches | N/A |
| Wireless Support | No | No | No | No | No |
Reviews & Ratings
S
Stephen Carter
4
Handles UC and security workloads without issues. Very robust platform.
M
Michael Thornton
5
Cisco ISR delivers reliable voice services at scale. Impressive throughput.
D
Daniel Foster
3
Great solution for secure unified communications. No downtime experienced.
R
Robert Kingsley
4
Strong performance for enterprise voice deployments.
Questions & Answers
What is the Cisco ISR 4451 VSEC Bundle (SKU: ISR4451-X-VSEC/K9)?
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.
What hardware specifications define the Cisco ISR 4451?
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.
How much voice capacity does the PVDM4-64 module provide?
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.
What unified communications features are included with the UC license?
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.