BRAND NEW WITH THE FULL CISCO WARRANTY!!!
The Cisco 4-Ports Layer 2 Gigabit EtherSwitch network interface modules switch modules to which you can connect Cisco IP phones, Cisco wireless access point workstations, and other network devices such as video devices, routers, switches, and other network switch modules.
Compatibility : Cisco 4451-X, 4451-X Application Experience, 4451-X Integrated Services Router, 4451-X Integrated Services Router Security Bundle, 4451-X Integrated Services Router Voice and Video Bundle, 4451-X Integrated Services Router Voice Security Bundle
Cisco Part Numbers : NIM-ES2-4, NIM-ES2-4=
UPC : 00882658704871