Function: 2 computers share 4 USB devices at the same time.Weight: 260g.Power supply: micro usb 5V.Standard: USB3.0.Switching method: press the key.USB KVM Switch Box USB 3.0 2.0 Switcher 2 Port PCs Sharing 4Devices for Keyboard Mouse Printer Monitor with 2 USB CableUSB Sharing Switch for 2 Computers sharing 4 USB Ports, KVMSwitches 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 Digital VideoCameras might need external power to running. Please make sure use Standard 5V Adapter for powering while using high power device.[Great Compatibility] Plug and play for Windows 10/8.1/7/Vista/XP andMac OS X, Linux and Chrome OS.Note: Any charger with higher voltage than 5 V output is NOT allowed and may affect the product.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.