Rocketek USB Switch, USB 3.0 Sharing Switch for 2 Computers Sharing 4 USB 3.0 Ports, KVM Switches for PCs with One-Button Swapping, High Data Transfer Speed & 2 Pack USB Cable

Using Steps   1. Connect both the USB Switcher Input Ports to your PC or laptop with the USB A to A Cables   2. Connect your external USB devices to the USB Switcher output ports.   3. Press the switch button to select the input computer.   4. Power up the switch via the Micro USB port to access devices such as External HDD, Digital Video Cameras and more. Power adapter is not included. Specification     Model No.: RT-USS3     Input: 2 USB 3.0 ports     Output: 4 USB 3.0 ports     Material: Aluminum Case     System Compatibility: Plug and Play for Windows 10/8/8.1/7/Vista/XP and Mac OS X, Linux, and Chrome OS.