USB Sharing Switch for 2 Computers sharing 4 USB Ports, KVM Switches for PCs with One-Button Swapping and 2 Pack USB Cable[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 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 Cameras might need external power to running. make use Standard 5V Adapter for powering while using device.[Great Compatibility]Plug and play for /8.1/7/Vista/XP and , Linux and Chrome OS.Note: Any charger with higher voltage than 5 V output is NOT allowed and may affect the productUsing 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 -USB port to access devices such as External HDD, Cameras and more. Power adapter is not included.Colour:As ShownMaterial:plasticPackage Contents:1 x USB KVM SwitchOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.