ATEN CS1644A 4-port Dual Video Dual Link DVI KVMP Switch with Audio Support, Cables Included

One dual-screen USB console controls two/four dual-screen computers and two additional USB devices Multi-View Display - Easily connect two CS1642A/1644A's units for a second dual-screen setup controlled through a single connection Superior video quality - 2560 x 1600 at 60Hz (DVI Dual link); and 3D displays up to 1920 x 1200 at 120Hz (DVI Single link) Supports widescreen resolutions Independent switching of KVM, USB, and Audio focus