The Hi-Speed USB 2.0 4-Port Mobile Hub provides four downstream USB ports that offer easy Plug-and-Play connectivity to your USB 1.1 and USB 2.0 devices. It lets you easily connect up to four of your USB 1.1 and 2.0 devices to your computer, such as an iPod or other MP3 player, digital camera, or printer. Its compact size makes it a perfect travel tool, designed to easily tuck into the pockets of a laptop bag. Includes power supply.