Fiber Optic (XGSF-BS5312-40) 1.Up to 1.25 GB/s ... links 2.Hot-pluggable SFP BIDI 3.High quality Fiber Optic (XGSF-BS5312-40) PRODUCT FEATURES Up to 1.25 GB ... bi-directional data links Hot-pluggable SFP footprint 1310nm DFB Transmitter and 1550nm PIN Receiver for XGSF-BL3512-40 1550nm DFB ... , Riverstone, Enterasys, Netgear, Nortel, Juniper, Ruijie, Zyxel, Huawei,etc. Fiber Optic (XGSF-BS5312-40)