Western Digital’s My Book® 3.0 external hard drives feature a Super Speed USB 3.0 interface with the unmatched speed of up to 5 gigabits per second for the fastest transfer rate available on an external hard drive. That’s up to 10 times faster than Hi-Speed USB 2.0. With lightning-fast USB 3.0 you don’t have to wait for the technology to keep up with your ideas. And the elegant design takes up minimal space on your desk, allowing two or more My Book drives to nestle neatly together like volumes on a shelf