SFP - 1000BASE-BX SBD43040GE2B - SBD43040GExB is a high performance SFP transceiver module for Gigabit Ethernet data links over one single mode fibre. The maximum reach is 40km, with 19dB End Of Life (EOL) power budget. The transmitter is a 1490nm DFB laser, the receiver is a 1310nm PIN photodiode. Consequently, a module with a 1310nm transmitter and a 1490nm receiver is required at the opposite side of the link. The recommended counterpart is SBU34040GExx. This transceiver module is compliant with the Small Form-factor Pluggable (SFP) Multisource Agreement (MSA) and hot pluggable. This part number is a Skylane Generation B transceiver. This part number is a Skylane Generation B transceiver.