ATEN 4-Port USB 2.0 Dual-Link DVI KVMP Switch with 2.1 Audio Support CS1784 (Silver) Maximum video resolutions: DVI-D Dual link: 2560 x 1600; DVI-D Single link: 1920 x 1200; Supports Special monitors to 3840 x 2400 ATEN's Display Emulation Technology reads and remembers the monitor's settings (EDID) so there is no delay or change of video resolution when switching between, or booting computers. Complete keyboard and mouse emulation for error free booting and real-time switching Independent hotkey switching between KVM focus, USB peripheral, and Audio ports Switching "Beep" mutable via hotkeys