WD My Passport is a pocket-size storeroom for all your digital content. With a high capacity of 500GB, it features superfast USB 3.0 connectivity, automatic backup software and password protection and hardware encryption. With My Passport you get to protect your files from unauthorized use with plenty of space to store all your content. Equipped with backup software, you can have a second copy of your files all the tie and whenever you save a file or make a change to it, it is instantly backed up. As this portable hard drive is powered through USB port, you do not need to carry a cumbersome power adapter with you.