This 10-port USB 2.0 hub lets you connect up to 10 USB devices to a single USB port on your computer. Two swivel ports allow easy connection of MP3, flash drive and similar devices. This hub meets or exceeds USB 2.0 Specifications for Hi-Speed data transmission rates up to 480MB per second. It is perfect for both the mobile and desktop user. While the hub will function perfectly in virtually all cases without needing external power, a multi-voltage AC adapter (110/220V) is included in the event you are connecting power-hungry devices. Backwards compatibility lets it function with both USB 2.0 and USB 1.1 devices. Overcurrent protection safeguards connected equipment from overvoltages. Hub includes a 3' hub-to-computer USB Cable with "A" Male to 5-pin Mini-B male.