Cisco ISR4351-V/K9 — Enterprise Voice Router with UC Bundle & PVDM4-64

Save up to 80% over new with this refurbished Cisco ISR 4351 UC Voice Bundle router. Ideal for mid-size enterprise branch offices, the ISR4351-V/K9 delivers integrated voice, data, and video services with 200–400 Mbps aggregate throughput — all backed by Reef Telecom's industry-leading 10-year warranty.

Key Specifications

• Part Number: ISR4351-V/K9
• UC Voice Bundle with PVDM4-64 DSP module and UC License
• 3 onboard Gigabit Ethernet (GE) WAN/LAN ports + 3 SFP ports
• 3 NIM slots, 1 ISC slot, 2 SM slots for modular expansion
• 4 GB DRAM (expandable to 16 GB) / 4 GB Flash (expandable to 16 GB)
• 200 Mbps–400 Mbps system throughput with pay-as-you-grow licensing
• Multi-core CPU with IOS XE for concurrent services
• 1 AC power supply included (supports dual redundant PSU)
• Rack-mountable 2RU form factor

Advanced Capabilities

• Unified Communications: VoIP, CUBE-25 SIP trunking, voice gateway
• Security: VPN, Zone-Based Firewall, DMVPN, IPsec encryption
• WAN Optimization: WAAS, Application Visibility & Control (AVC), PfR
• SD-WAN ready with Cisco Intelligent WAN (IWAN) support
• OnePK and AppNav for scalable network & application integration

Why Buy from Reef Telecom?

• 10-Year Warranty — the longest in the industry on refurbished gear
• Free Shipping on orders over $300
• Professionally tested, cleaned, and certified to full functionality
• Significant savings vs. new list price

The Cisco ISR4351-V/K9 is ideal for enterprise branch deployments requiring converged routing, voice services, VPN connectivity, and WAN optimization in a single platform. Compatible with Cisco 4000 Series NIM, SM-X, and PVDM4 modules.

Free ground shipping on orders over $300. Same-day shipping on orders placed before 4PM EST.

All products include our industry-leading 10 Year Warranty backed by Reef Telecom.