Cisco ISR4351/K9 — Enterprise-Grade Integrated Services Router
Save up to 80% over new with this professionally refurbished Cisco 4351 ISR. Ideal for medium to large branch offices, this rack-mountable router delivers 200–400 Mbps of aggregate throughput with built-in WAN optimization, security, and unified communications — all backed by Reef Telecom's industry-leading 10-year warranty.
Key Specifications
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Part Number: ISR4351/K9
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Onboard Ports: 3x Gigabit Ethernet (RJ-45/SFP combo)
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NIM Slots: 3 (for WAN, voice, or LTE modules)
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Service Module Slots: 2x SM-X
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ISC Slot: 1 onboard
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Memory: 4 GB DRAM (expandable to 16 GB) / 4 GB Flash
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Throughput: 200–400 Mbps (license upgradeable)
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Operating System: Cisco IOS XE with SD-WAN support
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Form Factor: 2U Rack-Mountable
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Power: AC power supply included; supports redundant PSU
Built-In Enterprise Features
- IPSec/SSL VPN, Zone-Based Firewall, and Intrusion Prevention
- Application Visibility and Control (AVC) with QoS
- Cisco Intelligent WAN (IWAN) and SD-WAN ready
- Voice gateway support with optional PVDM4 modules
- Programmable APIs and centralized management via Cisco DNA Center
Why Buy from Reef Telecom?
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10-Year Warranty on all refurbished equipment
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Free Shipping on orders over $300
- Every unit professionally tested, cleaned, and restored to full functionality
- Trusted B2B telecom equipment supplier
The Cisco ISR4351/K9 is the ideal WAN edge platform for enterprises consolidating routing, security, voice, and WAN optimization into a single branch-office device. Compatible with Cisco NIM, SM-X, and ISC modules for flexible expansion as your network grows.
