In the near future, 100G network will be applied as mainstream. In order to meet people’s need, CFP transceiver is developed for a faster transmission of light and electricity information. CFP is short for Centum Form-factor Pluggable, it is a new type transceiver for the 100G fiber optical network. It can replace many former transceivers like SFP+, SFP, XFP etc., and provide a more efficient ability of information transmission. Although CFP can realize the 100Gbps speed, it has an inconvenient big bulk. Then CFP2 and CFP4 came out to solve the volume problem of CFP.