The SPBD-2488A4K1RD(T) from Delta Electronics, Inc. is a Fiber Optic Transceiver with Data Rate 2.48832 Gb/s, Wavelength 1310 to 1490 nm, Distance/Reach 20 km, Output Power -6 to 0 dBm, Receiver Sensitivity -25.5 dBm. More details for SPBD-2488A4K1RD(T) can be seen below.