Attention Use our provided cables for all computers and the output monitor for optimal results. The four USB cables are desnated for the front KVM USB ports. If they are not connected to your computers the keyboard and mouse will not function. For audio select USB Audio device as the sound output option and connect your speakers or headphones to the audio port.DP KVM Switch 4 Port 4K 144Hz Four Computers One DP Monitor Controls 4 DPinterfaced computers or other applicable devices using one keyboard one mouse one DP monitor with audio microphone and a USB 3.0 HUB port. Supported resolutions include 720x480i 720x480p x720p xi xp xHz xHz and xHz RGB 444 HDR10. Compatible with DP 1.2. Features autoscan autodetection hot plug play and HDCP. Supports multiple platforms Windows 11/10/7//XP/Vista Linux and Mac.Aluminum Alloy Shell We utilize hhquality aluminum alloy to offer our customers a premium look excellent drop resistance a lhtweht desn a strong build and robust corrosion resistance.Dital Display The KVM Switch 4port DP KVM features a dital display allowing you to easily see the current channel even in dark environments.Hotkey Tired of manually switching This 4 computers 1 monitor DP KVM offers a convenient keyboard shortcut press the rht CTRL key twice then press 1 2 3 or 4 followed by Enter to select a computer.