United States$5,000,000+
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L
Lawrence King
5
Strong voice and security performance combined. Handles higher call volumes well.
ISR4351-VSEC/K9
Cisco ISR 4351 Bundle with UC & Sec Lic. PVDM4-64. CUBE-25
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Name:
ISR4351-VSEC/K9
- Description:
- Cisco ISR 4351 Bundle with UC & Sec Lic. PVDM4-64. CUBE-25
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 147663704798
- Condition:
- Warranty:
- 3
- List Price:
$21,599.00
- Price:
$9,661.0055.3% off
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1
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ISR4351-VSEC/K9 Overview
ISR4351-VSEC/K9 is a high-performance, modular enterprise router designed to deliver integrated services including advanced security, VPN capabilities, and reliable WAN/LAN connectivity. Built with a flexible modular architecture and offering redundant power options, this router provides a versatile platform for branch office connections that require robust security and data throughput.
ISR4351-VSEC/K9 features multiple WAN interfaces alongside LAN ports that support Gigabit Ethernet, ensuring high-speed connectivity while streamlining voice, video, and data integration services. With built-in VPN, advanced firewall features, dynamic routing protocols, and support for high availability, it is optimized for demanding enterprise environments and critical business use cases.
ISR4351-VSEC/K9 price is $9,661.00, a 55.3% saving from the Cisco list price of $21,599.00. ISR4351-VSEC/K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for ISR4351-VSEC/K9 for additional pricing. Browse the full Router Isr 4000 series or explore all Cisco products.
ISR4351-VSEC/K9 Specifications
- Product Type
- Enterprise Router
- VPN Support
- IPSec / SSL VPN / DMVPN / FlexVPN
- Power Source
- AC Power Supply / Redundant
- Routing Protocols
- OSPF / BGP / EIGRP / RIP / Static Routing
- Broadband
- N/A
- Architecture
- Modular
- WAN Configuration
- Dual WAN
- WAN Ports
- 2 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
- CLI / SNMP / NetConf
- Compliance Standards
- FCC / CE
- Wireless Support
- No
- Speed/Capacity
- Gigabit
- Firewall Features
- Yes
- Features
- VPN / IPv6 Compatible / Firewall / MPLS
- Use Case
- Enterprise
- Management
- Managed
- Form Factor
- Rack-mount
- Integrated Services
- Voice / Security
- High Availability Support
- Supported
- Safety
- N/A
- EMC
- N/A
- Telecom
- N/A
- Throughput Capacity
- 0.15 Gbps
- QoS Features
- Supported
- Built-in Security Features
- Firewall / Intrusion Prevention / Malware Protection
- Expansion Slots
- EHWIC / NIM
- 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 ISR4351-VSEC/K9
- Height
- 1.73 inches
- Width
- 17.2 inches
- Depth
- 18.1 inches
- Weight
- 16.5 lbs
ISR4351-VSEC/K9 Use Case
SIP Trunk Modernization and Unified Call Routing with Cisco ISR4351-VSEC/K9 Bundle
Leverage the Cisco ISR4351-VSEC/K9 with UC & Sec License, PVDM4-64 DSP and CUBE-25 to migrate 200+ branch offices from legacy TDM to SIP trunking. In this scenario, a global financial services firm consolidates disparate PSTN links into a centralized SIP platform, enabling end-to-end encryption, dynamic call routing and seamless failover. Benefit: reduces telephony OPEX by 35%, improves voice quality, and simplifies carrier management under a single pane of glass.
Hybrid Cloud UCaaS Enablement and Secured VPN Connectivity on Cisco ISR4351-VSEC/K9
Deploy the Cisco ISR4351-VSEC/K9 Bundle with UC & Sec License, PVDM4-64 and CUBE-25 as a secure WAN gateway for UCaaS migration to the cloud. A mid-market manufacturer uses DMVPN and site-to-site IPsec tunnels to link its on-premises Cisco Unified Communications Manager to public cloud calling platforms. Benefit: delivers 500 Mbps encrypted throughput, ensures carrier-grade QoS for voice/video, and accelerates UCaaS adoption while meeting PCI DSS compliance.
Branch CPE Consolidation for Voice, Security, and WAN Optimization with Cisco ISR4351-VSEC/K9
Integrate routing, firewall, IPS, voice DSP and SIP session border control in a single Cisco ISR4351-VSEC/K9 device equipped with UC & Sec License, PVDM4-64 and CUBE-25. A retail chain replaces four disparate edge appliances per store with the ISR4351, achieving unified threat defense, on-site call processing and bandwidth management. Benefit: cuts hardware count by 60%, streamlines IT operations, and boosts application performance across voice, video and data traffic in remote locations.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 ISR4351-VSEC/K9 |  ISR4451-X-AX/K9 |  ISR4351-SEC/K9 |  ISR4431-AXV/K9 |  ISR4321-DNA | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Modular | Modular | Modular | Modular | Fixed |
| Broadband | N/A | N/A | N/A | N/A | N/A |
| Built-in Security Features | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention / Malware Protection | Firewall, Intrusion Prevention, Malware Protection | Firewall / Intrusion Prevention / Malware Protection |
| Compliance Standards | FCC / CE | FCC / CE | FCC / CE | IEEE 802.3, 802.3u, 802.3ab | FCC, CE |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | 18.1 inches | 16.90 inches | 15 inches | 15.4 inches | 15 inches |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | FCC / CE | N/A | N/A | N/A |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Expansion Slots | EHWIC / NIM | EHWIC / NIM | EHWIC / NIM | NIM | EHWIC |
| Features | VPN / IPv6 Compatible / Firewall / MPLS | VPN / VoIP / IPv6 Compatible / Firewall / MPLS / Syslog | VPN / IPv6 Compatible / Firewall / Integrated Security | VPN, VoIP, IPv6 Compatible, Firewall, MPLS | VPN / IPv6 Compatible / Firewall / MPLS |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 512 MB | 512 MB | 256 MB | 256 MB | 512 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.73 inches | 1.75 inches | 1.73 inches | 1.75 inches | 1.75 inches |
| High Availability Support | Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice / Security | Voice / Video | 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 / SFP |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 4 GB | 4 GB | 1 GB | 4 GB | 4 GB |
| Modular Slots Available | 2 Slots | 3 Slots | 2 Slots | 2 Slots | 3+ Slots |
| Network Protocols | IPv4 / IPv6 | IPv4 / IPv6 / MPLS | IPv4 / IPv6 | IPv4, IPv6 | IPv4, IPv6 |
| Power | 350 W | 350W | 150 W | 290W | 200 Watts |
| Power Source | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply |
| Product Name | Cisco ISR4351-VSEC/K9 | Cisco ISR4451-X-AX/K9 | Cisco ISR4351 Integrated Services Router with Enhanced Security (ISR4351-SEC/K9) | Cisco ISR4431-AXV/K9 Integrated Services Router | ISR4321-DNA |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | CLI / SNMP / NetConf | Cisco IOS XE CLI / SNMP / NetConf | SSH / Telnet / SNMP | SNMP, Telnet, SSH, Cisco SDM | Cisco DNA Center, CLI, Web UI |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / 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 |
| Safety | N/A | UL / CSA | N/A | N/A | N/A |
| Speed/Capacity | Gigabit | Gigabit | Gigabit | Gigabit | Gigabit |
| Stacking Capability | No | No | No | No | No |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | 0.15 Gbps | 2 Gbps | 0.075 Gbps | 300 Mbps | 0.3 Gbps |
| Use Case | Enterprise | Enterprise | Enterprise / Business | Enterprise | Enterprise / Business |
| VPN Support | IPSec / SSL VPN / DMVPN / FlexVPN | IPSec / DMVPN / FlexVPN / N/A | 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 | 2 WAN | 2 WAN | 2 WAN | 2 WAN | 2 WAN |
| Weight | 16.5 lbs | 17.6 lbs | 14 lbs | 26 lbs | 11 lbs |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | 17.2 inches | 17.32 inches | 17 inches | 17.5 inches | 17 inches |
| Wireless Support | No | No | No | No | No |
Reviews & Ratings
B
Bruce Hamilton
4
Reliable ISR for secure unified communications. Very stable.
A
Anthony Moore
5
Cisco quality shows in consistent voice and security performance.
G
Graham Lewis
3
Good processing capacity with UC features enabled.
M
Martin Blake
4
A dependable solution for enterprise branch voice security.
Questions & Answers
What is the Cisco ISR 4351 Bundle with UC & Sec Lic. PVDM4-64. CUBE-25?
The Cisco ISR 4351 Bundle with UC & Sec Lic. PVDM4-64. CUBE-25 is a high-performance integrated services router that delivers unified communications, advanced security, and voice services in a single platform.
Which licenses are included in the ISR4351-VSEC/K9 bundle?
The ISR4351-VSEC/K9 bundle includes Cisco Unified Communications (UC) and Security (SEC) feature licenses, a PVDM4-64 media module, and a CUBE-25 session border controller license.
What performance can I expect from the Cisco ISR 4351 router?
The Cisco ISR 4351 delivers up to 300 Mbps aggregate throughput, supports up to 300 VPN tunnels, and handles up to 1.2 million PPS, ensuring enterprise-grade performance.
How many voice channels does PVDM4-64 support?
The PVDM4-64 module supports up to 64 voice channels for transcoding, conferencing, and media services, optimizing call quality and capacity.