Serveredge 4-Port Dual Monitors DVI USB KVM Switch with 7.1 Ch. Sound is TMDS-compliant and designed specifically for sharing two large-sized DVI monitors/Flat Panel Displays between four multimedia computers with Dual Head display [2 x DVI]. With SEDDL704D you can fully control two Dual Head PCs using only one keyboard mouse and Dual DVI monitors/Flat Panel Displays.