【USB SWITCHER】4 port USB switch selector allows 2 computers to share 4 USB peripheral devices, such as a printer, scanner, mouse, keyboard, USB disk, etc. Great for use at home or small office, this USB switch supports sharing a mouse, keyboard, scanner, printer and more between two computers. | 【One-Botton Switch with LED】Just one click switches all devices at once, saving you time and hassle when moving between machines. The indicator light is not dazzling at night, so it will not disturb your working or sleeping. | 【Efficient KVM Switches】USB switch supports USB devices, such as external hard disks, high-resolution webcams, camcorders, video surveillance cameras, digital video cameras, multi-channel audio and more. Including a micro-USB cable for charging, you can add an adapter (not included) for use. | 【Great Compatibility, Driver-free】 This 4 Port USB switcher works with great compatibility, driver-free for Windows 10/8/8.1/7/Vista/XP and Mac OS X, Linux, and Chrome OS, simply plug and play. Simply connect the included USB cables from the switch to each computer and plug your devices into the four downstream ports. | 【Separate Micro USB Receptacle】Normally, no external adapter is required. For optional power, optimizing its compatibility with more devices, such as HDD,Digital Video Cameras, SSD etc. When using a high-power USB device, external 5V adapter is required. 【Important Note】 Please use Standard 5V Adapter (Not Included, sold separately) for powering.