... SX-MM 850nm 550m 1000BASE-SX CISCO SFP optical modules GLC-SX-MM 850nm 550m 1000BASE-SX CISCO SFP optical modules Cisco Module GLC-SX ... -MM= GE SFP, LC connector SX transceiver1. ... LC connector LX/LH transceiverGLC-SX-MMGE SFP, LC connector SX transceiverGLC-SX-MM=GE SFP, LC connector SX transceiver CWDM-SFP-1470=CWDM ...