HH8 【USB 3.0 Dual Monitor HDMI Extender Switch】This KVM switch dual monitor allows you to share two monitors and three USB 3.0 ports. With this KVM, you can share two HDMI monitors between two computers and control them with one set of keyboard and mouse. The KVM dual monitor HDMI is used to extend/duplicate the display. Quickly switch and control two computers with this 2-port KVM switch. Each laptop/PC needs to support two or more displays. If your computer only supports a single display, this product will not help you achieve dual display functionality. 【KVM Switch Dual Monitor 4K@60Hz】KVM switch dual monitor maximum resolution 4K@60Hz, compatible with 3840x2160 @ 30Hz, 1080P, 1080P 3D, 1080I, 720P, 576P, 576I, 480P, 480I. Supports separate audio and microphone output. Note: 4K@60Hz cannot be obtained unless both the computer's graphics card and monitor are compatible, so if you want to get the maximum resolution, you need to check the equipment first. 【Three USB 3.0 Ports】This HDMI dual monitor extender has three USB 3.0 ports for sharing USB devices such as scanners, USB printers, and U disks. It has a new design that hides bulky cables in the back and leaves the USB 3.0 ports in the front for connecting USB devices. The unique design keeps your desk tidy and says goodbye to messy cables. 【Two Switching Methods and Wide Compatibility】The USB 3.0 dual monitor HDMI can be switched with a wired button switch or the host button, which is very convenient and quick (Tip: Hotkey switching is not supported). Widely compatible with major OS such as Windows, Linux, Mac, Unix, Ubuntu, and Raspberry. It also supports HDMI devices without USB signal input, such as DVR and NVR.