The USB221SS 2-to-1 USB (Universal Serial Bus) 3.0 Peripheral Sharing Switch lets you share a single USB (Universal Serial Bus) 3.0 peripheral with 2 different computer systems, avoiding the cost of purchasing duplicate peripherals or the hassle of swapping cables from one system to another. The USB (Universal Serial Bus) sharing switch delivers speed & flexibility, with simple push-button controls for switching between computers, & support for Super Speed USB (Universal Serial Bus) bandwidth (up to 5 Gbps) ensuring fast data transfers to/from your shared peripheral device. The switch is also backward compatible with USB (Universal Serial Bus) 2.0/1.1 (480 Mbps, 12 Mbps respectively), so you don't have to worry about your computer or older peripherals not performing. The 2-port USB (Universal Serial Bus) switch can also be connected to a USB (Universal Serial Bus) hub, to expand the number of devices you can share between the two connected systems, or to a USB (Universal Serial Bus) drive enclosure or docking station, for a shared external storage solution. The switch features a compact design that takes up minimal desk space & is USB (Universal Serial Bus)-powered, so it doesn't require an AC wall outlet.