40G CFP I-temp Optical Transceiver is high stability, large flow, large data Optical Transceiver produced by F-tone through independent research. Supports 41.5Gbps aggregate bit rates;CWDM DFB laser and PIN/APD receiver and DWDM/APD;Up to 2km, 10km, 20km, 40km, 80km transmission on SMF;Compliant with CFP MSA Specification;widely used in telecommunications networks, aerospace industry, Aviation, electricity, railways, medical, transportation, communications, and other major areas.