SFP transceiver that supports 1G connections up to 3 km using single-mode fiber with a simplex LC UPC connector. Power Consumption CLASS 1 LASER PRODUCT, IEC/EN 60825-1:2014 Do not look into the ends of the fiber optic cable or SFP module . 1G SFP optical transceiver modules for multi-mode and single-mode in distances ranging from 300 meters up to 80km with a limited lifetime warranty., from 100m to 160km, for 1G switches, routers, servers, NICs and other transmission equipment. Click to get your 1GBE transceiver modules from nearby warehouses. Whether used in data centers, enterprise networks. Several versions of SMF optical modules exist, including 1000BASE-EX and 1000BASE-LX. 5 µm and a 125 µm cladding.