

Cisco ISR4351/K9 V02 Router Wireless Home Office | Wty
Cisco ISR4351/K9 — Enterprise Branch Router for Demanding WAN Environments
- 200 Mbps aggregate throughput for high-bandwidth branch connectivity and WAN aggregation
- 3 Gigabit Ethernet ports configurable as WAN or LAN interfaces to suit your network design
- 2 Network Interface Module (NIM) slots and 1 Service Module (SM) slot for modular expansion
- Runs Cisco IOS XE with full support for BGP, OSPF, EIGRP, MPLS, VPN, and QoS
- Integrated security features including zone-based firewall and IPsec/SSL VPN support
- Supports optional Cisco voice, DSP, and services modules for unified communications
The Cisco ISR4351/K9 is a high-performance branch router designed for enterprises requiring reliable, high-throughput WAN connectivity at the network edge. With 200 Mbps of aggregate throughput, three configurable GbE interfaces, and a modular expansion design, it gives network architects the flexibility to tailor the router to specific branch requirements — from dual-WAN setups to integrated voice gateways.
Running Cisco IOS XE, the ISR4351 supports the full Cisco enterprise routing feature set including BGP, OSPF, EIGRP, MPLS, and advanced QoS for traffic shaping and prioritisation. Its two NIM slots accept a wide range of interface modules including T1/E1, ADSL, serial WAN, and additional Ethernet modules, while the SM slot supports higher-density voice and data service modules.
| Throughput | 200 Mbps aggregate |
| Onboard GbE Ports | 3 |
| NIM Slots | 2 |
| SM Slots | 1 |
| Operating System | Cisco IOS XE |
| Routing Protocols | BGP, OSPF, EIGRP, MPLS, RIP |
| VPN | IPsec, SSL VPN |
| USB Ports | 2 x USB 2.0 |
| Form Factor | Rack Mountable (2U) |
| Great for | Enterprise branch offices requiring high-throughput WAN routing and modular expansion |
| Also suits | Network teams running BGP, MPLS, or complex multi-WAN topologies at branch sites |
| Consider instead | The ISR4321 for lighter throughput requirements at a smaller branch |
| Not suited for | Home networks, small offices without dedicated network engineering support |
| Excellent | Excellent to very good cosmetic condition. May have light scratches or minor blemishes. Fully tested and functional. |
| Good | Good cosmetic condition with visible signs of prior use. May have scuffs or scratches. Fully tested and functional. |
Frequently Asked Questions
What NIM modules are compatible with the ISR4351?
The ISR4351 accepts the full range of Cisco NIM modules including NIM-1T (serial WAN), NIM-4MFT-T1/E1, NIM-2FXO, NIM-4FXO, NIM-8CE1T1-PRI, and additional GbE modules. Check Cisco's compatibility matrix for your specific requirements.
Does the ISR4351 support SD-WAN?
Yes — the ISR4351 is compatible with Cisco SD-WAN (Viptela) with appropriate licensing, allowing you to deploy it as part of a Cisco SD-WAN fabric.
What IOS XE version ships on this unit?
Exact IOS XE version varies by unit. We recommend verifying the version and upgrading to the latest supported release for your deployment after purchase.
12-Month Warranty Included
Every Cisco ISR4351/K9 sold by Reboot IT is fully tested before dispatch and covered by our 12-month warranty. We're a Melbourne-based business committed to quality refurbished IT at honest prices.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Cisco ISR4351/K9 — Enterprise Branch Router for Demanding WAN Environments
- 200 Mbps aggregate throughput for high-bandwidth branch connectivity and WAN aggregation
- 3 Gigabit Ethernet ports configurable as WAN or LAN interfaces to suit your network design
- 2 Network Interface Module (NIM) slots and 1 Service Module (SM) slot for modular expansion
- Runs Cisco IOS XE with full support for BGP, OSPF, EIGRP, MPLS, VPN, and QoS
- Integrated security features including zone-based firewall and IPsec/SSL VPN support
- Supports optional Cisco voice, DSP, and services modules for unified communications
The Cisco ISR4351/K9 is a high-performance branch router designed for enterprises requiring reliable, high-throughput WAN connectivity at the network edge. With 200 Mbps of aggregate throughput, three configurable GbE interfaces, and a modular expansion design, it gives network architects the flexibility to tailor the router to specific branch requirements — from dual-WAN setups to integrated voice gateways.
Running Cisco IOS XE, the ISR4351 supports the full Cisco enterprise routing feature set including BGP, OSPF, EIGRP, MPLS, and advanced QoS for traffic shaping and prioritisation. Its two NIM slots accept a wide range of interface modules including T1/E1, ADSL, serial WAN, and additional Ethernet modules, while the SM slot supports higher-density voice and data service modules.
| Throughput | 200 Mbps aggregate |
| Onboard GbE Ports | 3 |
| NIM Slots | 2 |
| SM Slots | 1 |
| Operating System | Cisco IOS XE |
| Routing Protocols | BGP, OSPF, EIGRP, MPLS, RIP |
| VPN | IPsec, SSL VPN |
| USB Ports | 2 x USB 2.0 |
| Form Factor | Rack Mountable (2U) |
| Great for | Enterprise branch offices requiring high-throughput WAN routing and modular expansion |
| Also suits | Network teams running BGP, MPLS, or complex multi-WAN topologies at branch sites |
| Consider instead | The ISR4321 for lighter throughput requirements at a smaller branch |
| Not suited for | Home networks, small offices without dedicated network engineering support |
| Excellent | Excellent to very good cosmetic condition. May have light scratches or minor blemishes. Fully tested and functional. |
| Good | Good cosmetic condition with visible signs of prior use. May have scuffs or scratches. Fully tested and functional. |
Frequently Asked Questions
What NIM modules are compatible with the ISR4351?
The ISR4351 accepts the full range of Cisco NIM modules including NIM-1T (serial WAN), NIM-4MFT-T1/E1, NIM-2FXO, NIM-4FXO, NIM-8CE1T1-PRI, and additional GbE modules. Check Cisco's compatibility matrix for your specific requirements.
Does the ISR4351 support SD-WAN?
Yes — the ISR4351 is compatible with Cisco SD-WAN (Viptela) with appropriate licensing, allowing you to deploy it as part of a Cisco SD-WAN fabric.
What IOS XE version ships on this unit?
Exact IOS XE version varies by unit. We recommend verifying the version and upgrading to the latest supported release for your deployment after purchase.
12-Month Warranty Included
Every Cisco ISR4351/K9 sold by Reboot IT is fully tested before dispatch and covered by our 12-month warranty. We're a Melbourne-based business committed to quality refurbished IT at honest prices.


















