Cisco 1-Port OC-12c/STM-4 POS Shared Port Adapter Refurbished

Expansion module - HDLC, Frame Relay, SONET/SDH, PPP - fibre optic - OC-12c/STM-4 - for Cisco 7603, 7603-S, 7604, 7606, 7606-S, 7609, 7609-S, 7613, 7613-S