Western Digital My Book Pro Edition 320 GB USB 2.0/FireWire 400/FireWire 800 Desktop External Hard Drive WDG1T3200N Triple interface FireWire 800, FireWire 400, and USB 2.0 EMC Retrospect Express Powerful backup software that includes full system backup and recovery, easy scheduling, and encryption Capacity gauge See at a glance how much space is available on your drive. Intelligent drive management features Automatic power-up, Safe Shutdown, and LED activity lights make this drive especially easy to use. Smart design The compact elegant case, iconic of a book, takes up less space on your desk, stacks horizontally, and allows two or more drives to nestle neatly together like volumes on a shelf.