... .Hot-pluggable SFP BIDI 3.High quality SFP BIDI optical module(XGSF-BS5312-40) PRODUCT FEATURES Up to 1.25 GB ... SFP footprint 1310nm DFB Transmitter and 1550nm PIN Receiver for XGSF-BL3512-40 1550nm DFB Transmitter and 1310nm PIN Receiver for XGSF-BL5312-40 ... What we supplyWe supply all kinds of compatible optical transceiver modules, including SFP, GBIC, SFP+, XENPAK, X2 , XFP, BIDI,CWDM,DWDM ...