IOGEAR's GCS1784 4-port Dual Link DVI KVMP Switch with 7.1 Audio marks a revolutionary step in KVM functionality by combining IOGEAR's Display Emulation technology with the widescreen graphics resolution of today's 30+ inches monitors, supporting dual link DVI, 2560 x 1600. Achieve 4K UHD Resolution with this Dual-Link DVI KVM Switch using IOGEAR's GHDDVIC4K3 4K HDMI to DVI-D Converter Cable. With this reversible 4K cable, you may use 4K HDMI source and project to 4K HDMI monitor, without the need to upgrade your Dual-Link DVI KVM switch setup.The GCS1784 is equipped with IOGEAR's Display Emulation technology which remembers your monitor's ideal resolution and refresh rate (EDID), making it possible to boot all your computers simultaneously, switch back and forth between computers, and still maintain the ideal video settings of the monitor. It also features two USB 2.0 peripheral ports for asynchronously sharing USB devices between your computers. A powered USB hub may be attached to the peripheral ports for added functionality.Completing the GCS1784 is its support for 7.1 surround sound systems, ideal for Blu-ray Discs, high-end gaming, and video editing. It offers an out-of-box solution including all cabling required for "Set-up and Go"!