The SSK-xAJx-x11 from W-Optics Technology is a Fiber Optic Transceiver with Data Rate 1.25 to 2.5 Gb/s, Wavelength 1310 nm, 1550 nm, Distance/Reach 40 km, Output Power -3 to 2 dBm, Receiver Sensitivity -23 to -20 dBm. More details for SSK-xAJx-x11 can be seen below.