StarTech.com MSA Uncoded Compatible SFP Module, 1000BASE-LX, 1GbE Single Mode (SMF) Fiber Optic Transceiver, 1GE Gigabit Ethernet SFP, LC Connector, 10km, 1310nm, DDM, Mini GBIC Module - Lifetime Warranty (SFP1000LXST) - SFP-transmits/receiver module (mini-GBI