The APQPSR4CM01A from ATOP Corporation is a Fiber Optic Transceiver with Data Rate Up to 10.5Gb/s, Wavelength 1271/1291/1311/1331 nm, Distance/Reach 0.1 km, Output Power -7.6 to 2.4 dbm, Receiver Sensitivity -5.4 dBm. More details for APQPSR4CM01A can be seen below.