The Gefen EXT-DVIKVM-241DL allows you switch dual link DVI, USB 2.0 & Audio between two computers. Super high resolution video supplied with Dual Link DVI connectors. The ex-tend-it 2x1 DVI KVM DL Switcher allows you to easily switch between two cross-platform dual link DVI computers using just one dual link DVI display and USB 2.0 keyboard and mouse. The unit allows you to achieve mega high video resolutions up to 3840x2400. USB 2.0 is the next generation of USB capable of sending data significantly quicker than before. Stereo audio is routed through along with the video to the display. Audio, video and control signals are inchswitchedinch for each computer upon selection, providing you with an easy and effective method of accessing two computers from one workstation without the hassle of networking. The EXT-DVIKVM-241DL It allows you to choose between a Macintosh or PC keyboard/video/mouse combination.