The ALQ10-ER4-30 from 10Gtek Transceivers is a Fiber Optic Transceiver with Data Rate 44.8 Gb/s, Wavelength 1270 to 1330 nm, Distance/Reach 30 km, Output Power -2.7 to 4.5 dBm, Receiver Sensitivity -21.2 to 4.5 dBm. More details for ALQ10-ER4-30 can be seen below.