100G CFP2 OTU board is a 100G service access module for optical fiber links. It can realize CFP2 coherent optical module or 4*25G incoherent optical module with adjustable output optical power and wavelength in C-band, and can be converted into DWDM standard wavelength optical signal. It is suitable for SDH, SAN, SONET, ETHERNET, OTN, data center interconnection with DWDM multiplexer/demultiplexer to realize wavelength division multiplexing transmission. It provides a high-quality solution for solving transmission lines with insufficient fiber resources and high fiber line loss.