Tunable Optical Transceiver s produced by F-tone through independent research with Optical Transceiver ;Tunable SFP+ 40KM/80KM; Tunable SFP+ 40KM/80KM;Transmission rate10G; LC connector;Operating Voltage+3.3V; default with DDM;Apply Ethernet、SONET/SDH、fiber channel;Single fiber bidirectional; Compatible with RoHS;Operating temperature,C-temp and I-temp ;widely used in telecommunications networks, aerospace industry, Aviation, electricity, railways, medical, transportation, communications, and other major areas.