4-to-1 USB 2.0 Peripheral Sharing Switch The StarTech 4-to-1 USB Switch Box allows for a USB 2.0 device to be shared with up to 4 different computer systems, without having to disconnect and reconnect the cabling every time. Push button control makes switching between computers quick and easy Push button, hot-key controls or software for switching between computers Compliant with the USB 2.0 standard, with data transfer rates up to 480 Mbps Powered directly from the USB port Compact desktop form factor design Plug-and-Play compatible No external power adapter required, and with its compact design, the USB421HS USB 2.0 data switch takes up little space and is easily portable