Industry Standard 1000Base-EX SFP Transceiver (SMF, 1310nm, 40km, LC). An Industry Standard SFP transceiver that operates at 1310nm over single-mode fiber, with a maximum reach of 40km connected via a LC connector. This Industry Standard 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.