【HDMI KVM Switch 4 Port】KVM Switch HDMI supports 4 computers to share 1 monitor and is controlled by 1 set of keyboard and mouse. You can enjoy free and fast switching between 4 computers, greatly improving your office efficiency. 【KVM Support 4K@60Hz】The maximum resolution supported by 4 Port KVM Switch is 3840x2160@60Hz , compatible with lower resolutions such as 3840x2160@30Hz , 1080p, etc. Adaptive EDID can identify multiple display devices. 【with 3 USB3.0 Ports】KVM Switch with 3 USB 3.0 ports supports 4 computers to share USB devices, such as keyboard, mouse, USB flash disk, camera, etc. It is more convenient to use. 【Button Switch】HDMI KVM Switch supports button switching, which is convenient and fast between 4 PCs. Hotkey switching is not supported. 【Good After-sales Service】The 4 Computer KVM Switch package contains 1 HDMI cable, 4 USB3.0 cables, 1 power cable. We have good after-sales service. If you have any questions about the product, please email us via Amazon. Please believe that we will give you a reasonable solution. kvm switch