Switch between two triple head computers, while sharing three DVI displays, speakers & mic, USB Keyboard/Mouse, and USB 2.0 peripherals. The SV231TDVIUA 2-Port Triple Monitor DVI USB KVM Switch allows 2 PCs to share monitors, 1 microphone and set of speakers, 1 keyboard and 1 mouse, as well as an additional USB 2.0 peripheral such as an external hard drive, thumb drive, printer, or webcam. The Triple DVI KVM switch enables you to switch back and forth between 2 multi DVI PCs at the touch of a button, while maintaining professional-level video quality on all monitors at resolutions up to 1920x1200. The triple monitor DVI switch also features an integrated USB hub port which allows USB 2.0 peripherals to be shared between attached systems, eliminating duplicate peripheral costs and offering the convenience of sharing stored data between PCs.The SV231TDVIUA 2-Port Triple Head DVI KVM Switch is backed by a StarTech.com 3-year warranty and free lifetime technical support.PLEASE NOTE: While both DVI-I and DVI-D are supported by the KVM, both source PCs must output the same signal type for proper switching. It is recommended, wherever possible, to use DVI-D cables across all PC to KVM and KVM to Console connections. If necessary, please contact our technical support team for assistance identifying your source.