#base lx km

QSFPTEK Gigabit SFP Module 1000BASE-LX/LH 1310nm 10km DDM Single-Mode LC Mini-GBIC Transceiver for Cisco GLC-LH-SMD/GLC-LX-SM-RGD, Ubiquiti UF-SM-1G, Netgear, Mikrotik, Other Open Switches

6COM 1.25G SFP Transceiver 1000Base-LX, 1310nm SMF, LC Single-Mode Module, up to 10 km, for HP J4859A/A5416AJ4859C/J4859B

1G SFP LX for HPE Aruba J4859D J4859C J4859B J4859A 1000BASE-LX Mini-GBIC Fiber Optical Transceiver Module, SMF, 1310nm, 20km/10km, LC, DOM, 10 Pack