A media converter is a networking device that transparently converts Ethernet or other communication protocols from one cable type to another type, usually copper CATx/UTP to fiber. Media converters are often used in pairs to insert a fiber segment into copper networks to increase cabling distances and enhance immunity to electromagnetic interference. They can also extend LANs, and convert link speeds and fiber modes. BigCatCables.com offers a variety of Media Converters for your Networking needs.