Skip to product information
1 of 1

PICS Telecom Marketplace

ISR4451-X/K9 – Cisco 4451-X Integrated Services Router with 4GE, 3 NIM, 2 SM Slots

ISR4451-X/K9 – Cisco 4451-X Integrated Services Router with 4GE, 3 NIM, 2 SM Slots

The Cisco ISR4451-X/K9 is a powerful Integrated Services Router designed for mid- to large-scale enterprise branch deployments. Combining high-throughput performance with modular expansion capabilities, it supports cloud applications, security services, and scalable WAN connectivity. With 4 onboard Gigabit Ethernet ports, 3 NIM slots, and 2 SM slots, this platform ensures network agility, secure data transport, and operational efficiency.

🔑 Key Features & Benefits

  • 🌐 4x Gigabit Ethernet Ports – Delivers high-speed connectivity for branch infrastructure

  • 🧩 3 NIM & 2 SM Slots – Modular design supports voice, WAN, and storage interface expansions

  • 8GB Flash, 4GB DRAM – Reliable memory and storage for high-performance routing operations

  • 🔒 Built-In Security Features – Supports IPsec VPN, Zone-Based Firewall, and encrypted traffic inspection

  • 🚀 Application-Aware Routing – Optimized for cloud access, SD-WAN, and hybrid IT environments

  • 🔁 Refurbished & Tested – Thoroughly verified by PICS Telecom to meet enterprise-grade standards

🎯 Ideal For

  • 🏢 Enterprise & Branch Office Networking

  • 🛰️ Hybrid WAN & SD-WAN Deployments

  • 🔐 Secure Data Transport & VPN Services

  • ♻️ Cost-Effective Infrastructure Expansion

📊 Specifications at a Glance

  • Model: ISR4451-X/K9

  • Manufacturer: Cisco

  • Ethernet Ports: 4 x GE

  • Expansion Slots: 3 x NIM, 2 x SM

  • Memory: 8GB Flash / 4GB DRAM

  • Services Supported: VPN, QoS, Application Visibility, Security

  • Form Factor: Rack-Mountable

  • Condition: Refurbished & Tested


Empower your branch connectivity with the Cisco ISR4451-X/K9, now available at PICS Telecom. Visit www.picstelecom.com or explore marketplace.picstelecom.com to request a quote and discover premium refurbished networking solutions.

View full details