1GE 1000BASE-BX-U SMF 1310nm-TX/1550nm-RX 40km DOM LC WDM BiDi SFP Transceiver Module Cisco GLC-BX40-U-I Compatible
1GE 1000BASE-BX-U SMF 1310nm-TX/1550nm-RX 40km DOM LC WDM BiDi SFP Transceiver Module Cisco GLC-BX40-U-I Compatible,SFP Transceiver