1 Display 2 Computers: The switch allows you to control two computers sharing one display with one set of keyboard and mouse. You can easily switch between the two computers using the panel buttons (the front status indicator indicates which computer is active). 4 USB 2.0 Ports: The display switch for both computers is designed with four USB 2.0 ports. When connecting a keyboard and mouse, you can also take advantage of two additional USB devices such as printers, scanners, game controllers, etc. Compatible Systems: This HD Multimedia Interface switch does not require a driver and is powered by a USB cable. It has good compatibility with mainstream systems such as Windows, OS X, Linux, Unix, etc. Multi-Application: switches are widely used in home theater, game entertainment, multimedia teaching, corporate meetings and other scenarios. Compatible with most HD Multimedia Interface devices such as TV boxes, PCs, laptops. UHD 4K x 2K: The HD Multimedia Interface switch supports resolutions up to 4K x 2K, providing you with the best visual experience of ultra-high-definition video images. It is backward compatible to support lower resolutions.