Western Digital 3TB My Book Essential USB 3.0 External Hard Drive: * Dual USB 3.0 and USB 2.0 compatibility * Connectivity for today; speed for tomorrow * Up to 3x faster transfer rates with USB 3.0 * Hardware encryption, password protection * Connecting with your USB 2.0 port today and using with USB 3.0 when you"re ready * Protecting your data with automatic, continuous backup * Adding extra storage space for photos, videos and music * Securing private or sensitive data with password protection and hardware enc