CISCO NIM-4FXS 4-port Network Interface Module FXS for ISR 4000 Series Routers

CISCO NIM-4FXO 4-port Network Interface Module VOICE FXO ISR4000 Series Routers

Lot of 10 Cisco NIM-4FXS 4-Port FXS Network Interface Module for ISR!

CISCO NIM-4FXSP 4-Port Network Interface Expansion Module for 4000 Series Router

Cisco NIM-4FXO 4-Port Network Interface Module Lot of 5

Cisco VIC2-4FXO 4Port FXO Voice Interface Card

Lot of 10! Cisco NIM-4FXO 4-port Network Interface Module FXO for ISR 4000