Gigabit SFP Transceiver Single-Mode 1000Base-LX for Ubiquiti UF-SM-1G, 1.25Gb/s SFP LX Module (SMF, 1310nm, 10km, LC, DDM) Data Rate: 1.25Gb/s, Connector: duplex LC, Distance: 10km(6.2miles). For Ubiquiti UF-SM-1G, work perfectly on Ubiquiti Gigabit Switch, Router and media converter. High Quality Chip: Fast Transmission, Stable and Reliable. Hot-pluggable, Connected with Single-Mode Fiber. 3-year Warranty, 30 Days Free-returned, Free Lifelong Technology Support.