LaCie Little Disk 320 GB USB 2.0 Hard Drive, Designed by Sam Hecht 320 GB USB portable hard disk features stunning design by Sam Hecht USB 2.0 cable is built-in so you will never be caught without one Gets power from the USB bus so no power adapters are required Includes one-year online backup service providing unlimited off-site backup storage Measures 3.19 x 0.71 x 5.08 inches (WxHxD); backed by a 2-year warranty