ADD-FMC-FX-SFP is a Media Converter that converts a 100Base Copper to 100Base-X via an Open SFP Port. The Open SFP Port allows users to customize between the SX, LX, or BX connections. The ADD-FMC-FX-SFP provides a cost effective conversion from 100Base Copper to 100Base-X, while extending the network reach beyond the 100m reach limitation of copper. Addoncomputer.com Media Converters and Network Interface Cards are 100% compliant for all of our networking needs. Now you have a cost effective solution to your network upgrade needs. With our ADDON CERTIFICATION TEST Program, we can guarantee your product will work right the first time.