CISCO ISR4321/K9 Router

The Cisco ISR4321/K9 Router is part of the Cisco 4000 Series Integrated Services Routers, delivering secure, high-performance, and scalable networking for branch and enterprise environments. Designed with a modular architecture, it supports a wide range of WAN, LAN, voice, and security modules, enabling organizations to customize the router to meet their specific needs. With an aggregate data throughput of up to 100 Mbps (upgradeable via license to higher levels), the ISR4321 ensures efficient handling of modern business applications, cloud connectivity, and high-volume traffic. Advanced security features are built in, including hardware-accelerated IPsec encryption, VPN support, access control lists (ACL), stateful firewall, and QoS for optimized traffic prioritization. Its compact 1RU form factor makes it space-efficient, while redundant power options and energy-efficient design ensure reliability and reduced operational costs. Managed through Cisco IOS XE Software, it offers simplified configuration, automation, and monitoring, making it ideal for businesses seeking long-term stability, security, and scalability in their networks.