StarTech.com Juniper SFP-1GE-LH Compatible SFP Module, 1000BASE-ZX, 1GbE Single Mode (SMF) Fiber SMF Optic Transceiver, 1GE Gigabit Ethernet SFP, LC Connector, 80km, 1550nm, DDM, Mini GBIC - Lifetime Warranty (SFP1GELHST) - SFP (mini-GBIC) transceiver module (equivalent to: Dell EMC SFP-FE20KT13R15) - 1GbE - 1000Base-ZX - LC single-mode - up to 80 km - 1550 nm