... km, LC)XFP-STM64-LX-SM1310Optical Transceiver, XFP, 10G, Single-mode Module (1,310 nm, 10 km, LC)XFP-STM64-LH40-SM1550Optical Transceiver, XFP, 10G, Single-mode Module (1,550 ... nm, 40 km ,LC)XFP-STM64-SM1550-80kmOptical Transceiver, XFP, 10G, Single-mode Module (1,550 ...