USB 2.0 SR EXTENDER OVER ONE CAT-5 CABLE. Gefen's EXT-USB2.0-SR extends high-speed USB devices over a single CAT-5e cable, up to 50 meters/165 feet. It works with all major operating systems -- Windows, macOS and Linux. No software drivers are required. The Sender and Receiver units install in minutes without any configuration, and support USB versions 2.0 and 1.1 - essential for high-performance applications such as digital imaging and interactive gaming.