The SFP-1303-40-D from 10Gtek Transceivers is a Fiber Optic Transceiver with Data Rate 100 to 155 Mb/s, Wavelength 1310 nm, Distance/Reach 40 km, Output Power -5 to 0 dBm, Receiver Sensitivity -35 to -3 dBm. More details for SFP-1303-40-D can be seen below.