StarTech.com Juniper RX-10KM-SFP Compatible SFP Module, 1000BASE-LX, 1GbE Single/Multi Mode MMF Fiber Optic Transceiver, 1GE Gigabit Ethernet SFP, LC Connector 10km, 1310nm, DDM, Mini GBIC - Lifetime Warranty (RX10KMSFPST) - SFP (mini-GBIC) transceiver module (equivalent to: Juniper RX-10KM-SFP) - 1GbE - 1000Base-LX - LC single-mode / LC multi-mode - up to 10 km - 1310 nm