MSA Compliant 1000Base-BX SFP Transceiver (SMF, 1550nmTx/1310nmRx, 40km, LC, DOM). A 100% MSA Compliant SFP transceiver that operates at 1550nmTx/1310nmRx over single-mode fiber, with a maximum reach of 40km connected via a LC connector. This MSA Compliant SFP transceiver is 100% compliant with its designed networking application. This SFP transceiver is built comply with MSA (Multi-Source Agreement) standards. The actual part shipped may have a different part number, but will be functionally identical and 100% compatible. Trade Agreements Act (TAA) versions of this part are available.