My book essential - next generation storage and backup my book external drives are the world's best selling drives. With 20 years of experience we know how to protect your data. Put your digital life on the sleek, high capacity my book essential external hard drive. With wd quality and usb 3.0 and usb 2.0 connectivity, this drive is designed for today with tomorrow in mind. Dual usb 3.0 and usb 2.0 if you're worried that your desktop drive won't be able to keep up with the tranfer rates of the future, then look no further than the my book essential. With the dual interface you'll have a single drive with both universal compatibility for today, and the next-generation speed you need for tomorrow. Use it with usb 2.0 now and step up to usb 3.0 speed when you're ready. Up to 3x faster transfer rates when connected to a usb 3.0 port this drive lets you access and save files up to 3 times faster than usb 2.0. Imagine being able to transfer a 2-hour hd movie in just 5 minutes instead of 13 minutes.* not only will this save you time and allow you to do other tasks, but it also makes your media that much more portable, available to be moved between locations or be transferred within minutes. *performance may vary based on user's hardware and system configuration. A single drive with universal compatibility today and next-generation speed for tomorrow. Wd quality inside and out for over 20 years, millions of people worldwide have trusted their data to wd hard drives. We are successful because we understand the importance of your data and our first concern is keeping that data safe. Wd smartware software you're in control of your backup. With our intuitive backup system you can decide how you approach securing your data for the future - you can install all the features, select just the components you need, or if you prefer, choose not to use the software at all.