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/1.063Gbps ... MSA and SFF-8472 with duplex LC receptacleDigital Diagnostic Monitoring:Internal Calibration or External CalibrationCompatible with SONET OC-24-LR-1Compatible ...