Cisco ISR4451-X-SEC/K9 Router – Secure Branch Connectivity

Product Description

Cisco ISR4451-X-SEC/K9 is a modular enterprise router from the Cisco ISR 4000 series, supplied with a Security (SEC) license pre-installed. This device is designed for medium to large enterprise deployments requiring integrated routing, security, and advanced WAN services in a single platform. It is intended for B2B buyers managing branch offices, regional headquarters, or data center edge connectivity.

Technical Specifications

• Model: ISR4451-X-SEC/K9
• Bundle: Cisco ISR 4451 Sec Bundle, w/SEC license
• Form Factor: Modular router, ISR 4000 series
• Security License: Included (SEC license)
• Interface Support: Modular slots for network interface modules (NIMs) and service modules
• Platform Type: Enterprise-class integrated services router
• Series Compatibility: ISR 4000 family

Design Features

• Modular chassis supports flexible interface and service module configuration
• Integrated security license enables VPN, firewall, and encryption services without additional hardware
• Designed for high-availability enterprise environments
• Backward-compatible with ISR 4000 series modules and accessories
• Compact rack-mountable form factor for standard data center racks

Application Area

This router is deployed in enterprise networks across Poland and Central Europe as a WAN edge device, aggregating branch traffic and providing secure connectivity to corporate data centers. It is also used in regional headquarters for interconnecting remote sites via VPN, supporting mission-critical applications such as ERP, VoIP, and cloud services. The SEC license makes it suitable for industries with strict data protection requirements, including finance, manufacturing, and public administration in the CEE region.