•[USB Sharing Hub] One button swapping between 2 computers. Convenient & efficient, 2 computers share 4 USB devices, plug and play •[2 USB Input 4 USB Output] Keyboard, mouse, USB printer, scanner, curve plotter, multifunction printer, Bluetooth-compatible equipment and other USB devices can be used with 2 computers, which saves money and time •[5V DC Power Supply Port] Devices like HDD and digital video cameras might need external power to work. Please make sure to use a standard 5V adapter for powering while using high power devices •[Wide Compatibility] Plug and play for Windows 10/8.1/7/Vista/XP and for Mac OS X, for Linux and for Chrome OS 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: •Input: 2 USB 2.0 ports •Output: 4 USB 2.0 ports •Material: Aluminum Case •System Compatibility: for Windows 10/8/8.1/7/Vista/XP and for Mac OS X, for Linux, and for Chrome OS Note: •Any charger with a voltage higher than 5V output is not allowed and may affect the product. Package included: •1 x USB KVM Switcher •2 x 5ft/1.5m USB A to A Data Cables •1 x Multi-language User Manual