Gefen GTB-DVIKVM-ELR extends DVI, Ethernet, RS-232, and USB signals up to 330 feet using two Cat-5 cables, making it ideal for digital signage applications, home theaters, and conference rooms. Its features include support for DVI resolutions up to 1920x1200 or 1080p, USB 2.0 data rates up to 480 Mbps, and compatibility with both PC and Mac computers. The extender also includes locking power supplies and is wall-mountable for easy installation.