Dvdo-hdmi-kvm-41 is a 4x1 Hdmi Kvm switcher with Hdmi 2.0 and Hdcp 2.2 compatibility. The four port Kvm switch allows the user controls four source devices / computers with only one set of Usb devices (e.g. Usb mouse, Usb keyboard, Usb flash and other Usb 2.0 compliant devices).This product provides a cost-effective way to share one Usb keyboard, one Usb mouse, one Usb 2.0 device and one Hdmi monitor to control four computers. The Dvdo-hdmi-kvm-41 supports Hdmi 2.0 specification features including data rates up to 18Gbps 4Kx2K60Hz (4:4:4) video, multi-channel audio and automatic Hdcp 2.2/1.4 compatibility.The Dvdo-hdmi-kvm-41 provides four Usb-b ports to connect upstream Usb host devices and three Usb-a ports to control. These Usb ports are Usb 2.0 compliant and downward compatible with Usb 1.1/1.0. The Dvdo-hdmi-kvm-41 also provides a microphone input and a headphone output interface for computers that do not have audio input/output.The Dvdo-hdmi-kvm-41 supports direct switching through buttons on the front panel and provides a wide compatibility choice for different operating systems, such as Windows, Mac Os and Linux, no driver required and simple plug and play..