Cisco ISR4451-X/K9 Router – High-Performance Enterprise Edge

Product Description

Cisco ISR4451-X/K9 is a modular enterprise router from the Cisco ISR 4000 series, designed for medium and large-scale network deployments requiring high throughput and service integration. This unit offers four Gigabit Ethernet ports, three network interface module slots, and two service module slots, making it suitable for B2B buyers managing complex branch or campus connectivity. It provides a robust routing platform with 8 GB of flash memory and 4 GB of DRAM, supporting advanced WAN services and security features.

Technical Specifications

• Model: ISR4451-X/K9
• Brand: Cisco
• Ethernet Ports: 4 x Gigabit Ethernet (4GE)
• Network Interface Module Slots: 3 (3NIM)
• Service Module Slots: 2 (2SM)
• Flash Memory: 8 GB
• DRAM: 4 GB

Design Features

• Modular chassis architecture for flexible service integration and scalability.
• Supports a range of NIMs and service modules for customized network functionality.
• Compact form factor suitable for rack-mounted enterprise deployments.
• Built for high-availability environments with redundant power and cooling options (per platform design).
• Designed to handle concurrent services, including routing, security, and WAN optimization.

Application Area

This router is deployed in enterprise head offices and large branch locations across Poland and Central and Eastern Europe (CEE), serving as a central aggregation point for WAN traffic. It is used in data center edge environments to connect campus networks to service provider links, supporting critical business applications and multi-site connectivity. The platform is suitable for organizations in finance, manufacturing, and public sector requiring reliable, service-rich routing infrastructure.