The ALQ28-LR4-10 from 10Gtek Transceivers is a Fiber Optic Transceiver with Data Rate 100 Gb/s, Wavelength 1269 to 1332 nm (LWDM), Distance/Reach 10 km, Output Power -4.3 to 4.5 dBm, Receiver Sensitivity -10.6 to 4.5 dBm. More details for ALQ28-LR4-10 can be seen below.