Wintop Small Form Factor Pluggable (SFP) transceiver is designed for data communication on Single-mode fiber and transmission distance up to 20km. The transceiver consists of five sections: the FP/DFB laser transmitter, the LD driver, the PIN photodiode, the limiting amplifier and the MCU control unit. And it compatible with Small Form Factor Pluggable Multi-Sourcing Agreement (MSA).