... /s SFP Fiber Optic Transceiver Module 550m, 10km, 20km, 40km, 80km, 120km are available wavelength: 850nm, 1310nm,1550nm 1.25Gbps Copper SFP Optical Transceiver Features ... service is available, High Quality with CE,RoHs,FCC,ISO certificate. Cost effective. 1000BASE-T SFP transceiver module for Category 5 copper wire RJ ...