Cisco ISR4451-X-SEC/K9 Router Security Bundle ISR4451XSEC/K9

Description:

The Cisco ISR4451-X-SEC/K9 Integrated Services Router Security Bundle is used in enterprise networking systems to provide high-performance routing, secure WAN connectivity, and integrated security services within Cisco ISR 4000 Series network infrastructures. Commonly installed in enterprise branch offices, corporate WAN edge networks, secure gateway environments, and distributed business locations where advanced routing performance and built-in security capabilities are required. Maintenance teams, network administrators, and system integrators use this router for secure branch network deployment, infrastructure upgrades, VPN connectivity implementation, and replacement of legacy enterprise routing platforms.

Applications:

The Cisco ISR4451-X-SEC/K9 router is designed for enterprise branch and edge network environments that require high-speed data routing combined with advanced security services. It is frequently deployed in corporate offices, financial institutions, healthcare networks, government facilities, and large distributed enterprises where secure VPN connectivity, firewall protection, and reliable WAN routing are critical for business operations. The router supports scalable network performance and integrated security features, enabling organizations to maintain secure communication between headquarters, remote branches, and cloud-based services.

Technical Specifications:

• Manufacturer Part Number (MPN): ISR4451-X-SEC/K9
• Product Type: Integrated Services Router Security Bundle
• Series: Cisco ISR 4000 Series
• Router Throughput: Up to 1–2 Gbps performance (license dependent)
• WAN Interfaces: Modular network interface module (NIM) support
• LAN Interfaces: 4 × Gigabit Ethernet ports
• Expansion Slots: NIM slots and service module support
• Security Features: Integrated VPN, firewall, and advanced security services
• Processor Architecture: Multi-core CPU
• Memory: 4 GB DRAM (expandable)
• Flash Storage: 8 GB internal flash
• Form Factor: Rack-mount enterprise router

Common Replacements:

• Cisco ISR4431/K9
• Cisco ISR4451-X/K9
• Cisco C3945E-VSEC/K9