Linksys® MGBBX1D compatible 1000Base-BX SFP transceiver (SMF, 1490nmTx/1310nmRx, 40km (40 km = 24.9 mi), LC). A 100% Linksys® compatible SFP transceiver that operates at 1490nmTx/1310nmRx over single-mode fiber, with a maximum reach of 40km (40 km = 24.9 mi) connected via a LC connector. This Linksys® SFP transceiver is 100% compliant with its designed networking application, and is factory programmed with Linksys® specific configuration data required for seamless networking integration. This SFP transceiver will initialize and perform identically to Linksys' transceiver and is built to meet or exceed Linksys' specifications, and 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.