StarTech.com Juniper CTP-SFP-1GE-LX Compatible SFP Module, 1000BASE-LX, 1GbE Single Mode (SMF) Fiber SMF Optic Transceiver, 1GE Gigabit Ethernet SFP, LC Connector, 10km, 1310nm, DDM, 1Gbps - Lifetime Warranty (CTPSFP1GELXS) - SFP (mini-GBIC) transceiver module (equivalent to: Juniper CTP-SFP-1GE-LX) - 1GbE - 1000Base-LX - LC single-mode - up to 6.2 miles - 1310 nm