Cisco ISR4321-VSEC/K9 Integrated Services Router

The Cisco ISR4321-VSEC/K9 Integrated Services Router provides secure, gigabit-capable WAN routing at the enterprise edge, combining integrated VPN, IPSec, firewall, and encryption acceleration with 100 Mbps default throughput (upgradeable with performance licenses) to support branch offices and distributed networks requiring encrypted site-to-site connectivity. It features two integrated Gigabit Ethernet WAN ports and two Gigabit Ethernet LAN ports, 4 GB of DRAM (expandable) and 4 GB of internal flash, plus two NIM expansion slots for modular interface upgrades. A USB 2.0 port, console and auxiliary management ports, and an internal AC power supply are included, all in a rack-mountable form factor suited for deployment in branch offices and enterprise edge environments. Common replacements for this model include the ISR4331/K9, ISR4351/K9, and C1111-8P.