The KVM AS-42HA HDMI is a 4-Port KVM-Switch with reasonable price and automatic audio switch for Desktops. The KVM is connected by four included cables to Keyboard/ Mouse (USB), Audio Mic/Line (2x 3.5mm Audio Jack) and Dual-HDMI (HDMI Monitor) and four more HDMI cables (not included) with the computers. The additional USB port in the front allows connecting external data drives, such as USB sticks.