The LS38-A3U-TC-Nxx from APAC Opto Electronics Inc. is a Fiber Optic Transceiver with Data Rate 125 to 155 Mb/s, Wavelength 1270 to 1450 nm, Distance/Reach 35dB margin, Output Power 5 dBm, Receiver Sensitivity -35 dBm. More details for LS38-A3U-TC-Nxx can be seen below.