1.25Gb/s SFP Fiber Optic Transceiver Module 550m, 10km, 20km, 40km, 80km, 120km are available wavelength: ... 850nm, 1310nm, 1550n 1.25Gbps SFP Optical Transceiver, 40km Reach FeaturesDual data-rate of 1.25Gbps/1. ... ChannelSwitch to Switch interfaceSwitched backplane applicationsRouter/Server interfaceOther optical transmission systems* Professional supply: SFP,GBIC,BIDI SFP,XFP, ...