Sharing USB Sharing hub,an interchangeable button between 2 computers. Convenient and efficient, 2 computers share 4 USB devices, plug and play. Multiple switching modes,Support panel buttons and desktop controller switching, recommended desktop controller switching more convenient to use. 2 USB input 4 USB output, keyboard, mouse, USB printer, scanner, plotter, multifunction printer, Bluetooth equipment and other USB devices can be used with 2 computers that save money and time. If USB port is connected to a wireless keyboard and mouse, please make sure that working distance is within range of product requirements (within 1 meter for a single USB device and within 0.3 meters for multiple USB devices). If power of external devices is large, please connect power supply for them. Please connect desktop controller if you need to switch from a distance. The product does not support video transmission. Note:Due to different production batches, the colors and styles of accessories are random and cannot be specified. Colour:Black Material:ABS Package Contents: 1 * USB3.0 switch 2 input 4 output 1 * desktop controller 2 * USB cable Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.