USB 3.0 SWITCHER4 port USB switch selector allows 2 computers to share 4 USB 3.0 peripheral devices, such as a printer, scanner, mouse, keyboard, USB disk, etc. You could have a try if you have 2 PCs or laptops, without constantly pulling cables or setting up complicated network sharing software. One-Botton Switch with LEDButton and LED design, you can easily switch between systems via push buttons. Green LED indicating the active PC1 and blue lights show you the PC2 is working. The indicator light is not dazzling at night, so it will not disturb your working or sleeping.