The CSS-887A23 from Huber+Suhner is a Fiber Optic Transceiver with Data Rate 1.0625 to 11.3 Gb/s (Tx), 9.8 to 11.3 Gb/s (Rx), Wavelength 1260 to 1620 nm, Distance/Reach up to 80 km, Output Power -6 to 4 dBm, Receiver Sensitivity <-23 dBm. More details for CSS-887A23 can be seen below.