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Manufacturer: Cisco Systems


The Cisco ISR4451-X-AX/K9 is a high-performance Integrated Services Router (ISR) designed for enterprise branch offices and remote sites. This router delivers advanced performance, high availability, and comprehensive security features, making it an ideal choice for organizations looking to ensure seamless and secure connectivity. With integrated services such as application visibility, WAN optimization, and voice services, the ISR4451-X-AX/K9 offers a robust and scalable solution for modern network demands.

Key Features

  • High Performance: Up to 2 Gbps aggregate throughput for demanding network environments.
  • Comprehensive Security: Integrated security features including firewall, VPN, and intrusion prevention system (IPS).
  • WAN Optimization: Built-in support for Cisco WAN optimization technologies to improve application performance.
  • Application Visibility and Control (AVC): Provides detailed insight into network traffic for better management and optimization.
  • Unified Communications: Supports voice, video, and data services with advanced QoS capabilities.
  • Modular Design: Offers flexibility with modular interfaces and service modules to expand and adapt to evolving network needs.
  • Redundant Power Supply: Optional dual power supplies for increased reliability and uptime.
  • Easy Management: Managed via Cisco IOS XE software, providing a familiar and robust command-line interface (CLI) and web-based tools.


  • Enterprise Branch Offices: Delivers high-speed connectivity and integrated services to support branch office operations.
  • Remote Sites: Ensures reliable and secure connectivity for remote sites and teleworkers.
  • Unified Communications: Supports VoIP and video conferencing to streamline communications.
  • Secure WAN: Provides secure VPN connectivity for remote access and site-to-site communication.
  • Application Optimization: Enhances application performance with WAN optimization and application visibility.


  • Product Number: ISR4451-X-AX/K9
  • Processor: Multi-core processor with hardware acceleration
  • Memory: 8 GB default DRAM, expandable to 16 GB
  • Flash Memory: 8 GB default, expandable to 32 GB
  • Interfaces: 4 integrated 10/100/1000 Ethernet ports, up to 2 enhanced service module (SM-X) slots, 2 NIM slots, 1 ISC slot
  • Performance: Up to 2 Gbps aggregate throughput
  • Security: Integrated firewall, VPN, IPS, and Cisco TrustSec
  • Power Supply: Single or optional dual hot-swappable power supplies
  • Dimensions: 88.9 x 438.15 x 469.9 mm (2 RU)
  • Weight: 17.9 kg
  • Operating Temperature: 0°C to 40°C (32°F to 104°F)
  • Storage Temperature: -40°C to 70°C (-40°F to 158°F)
  • Humidity: 5% to 95% non-condensing
  • Compliance: Meets various regulatory and safety standards including FCC, UL, and RoHS

Why Choose the ISR4451-X-AX/K9?

The Cisco ISR4451-X-AX/K9 is the ideal choice for organizations seeking a powerful, scalable, and secure networking solution. Its high performance and comprehensive feature set ensure that it can handle the most demanding network environments and applications. The modular design allows for flexibility and future growth, making it a future-proof investment.

Integrated security features and WAN optimization enhance both protection and performance, while unified communications support ensures seamless voice and video integration. With Cisco's proven reliability and extensive support ecosystem, the ISR4451-X-AX/K9 provides peace of mind and robust performance for enterprise networking needs. Choose the ISR4451-X-AX/K9 to build a resilient, efficient, and secure network infrastructure that can adapt to your organization's evolving requirements.


SKU: ISR4451-X-AX/K9
VAT Included

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