The FTLX8574D3BNL from Coherent Corp. is a Fiber Optic Transceiver with Data Rate 10 Gb/s, Wavelength 840 to 860 nm, Distance/Reach 26 to 400 m, Output Power -5 to 0.5 dBm, Receiver Sensitivity -11.1 to -7.5 dBm. More details for FTLX8574D3BNL can be seen below.