ALL4761, LC connection, 1.25G, single mode, SFP, 20KM range, commercial 0-+70 degrees, * only for one fiber! 1xLC simplex up to 20Km*, attention only works in conjunction with the Tx1490nm! for Industry Electronics/AlliedTelesyn/Avago/Avaya/Cambium/D-link/Entersys/Mikrotik/Netgear/Lancom/QNAP/Planet/Ubiquiti/Zyxel/ZTE,