Full Details on Amazon.com : http://www.amazon.com/gp/product/B002D1M0G6?tag=tsukuyomi-20
ATEN 4-Port Dual Video Dual Link DVI KVMP Switch with Audio Support and cables CS1644 (Black)
Maximum resolution - 2560x1600 DVI Dual Link 1920x1200 DVI Single Link
4-port DVI Dual View KVMP switch with USB 20 and 21 channel audio
Auto Scan Mode for monitoring all computers
Multiplatform support - Windows 2000XPVista Linux Mac