Description
The Cisco ISR4321/K9 Integrated Services Router is a compact yet powerful networking solution designed for small to medium-sized branch offices. With a modular architecture and fanless design, it offers quiet operation and flexibility for evolving network demands. This router supports up to 50 Mbps of aggregate throughput, scalable with performance licenses, and is equipped with two integrated WAN ports and one built-in Gigabit Ethernet LAN port for seamless connectivity. Its rack-mountable 1RU form factor makes it ideal for space-constrained environments.
Built on the Cisco IOS XE software platform, the ISR4321/K9 delivers advanced features such as secure VPN, firewall, and unified communications support. It includes 4 GB of DRAM and 4 GB of flash memory, with expansion options available through internal modules and NIM slots. The unit supports Power over Ethernet (PoE) with an optional upgrade, allowing for simplified deployment of IP phones and wireless access points. When purchasing this model used, buyers benefit from reliable performance and enterprise-level functionality at a fraction of the original cost.

