Western Digital Wd My Passport Essential 250 Gb USB 2.0 Portable External Hard Drive Wdbaaa2500asg-netg Sleek and colorful - This beautiful portable drive, available in many eye-catching colors, is light and easy to carry and fits smoothly in your hand or pocket. USB powered - Powered directly from the USB port on your PC. No separate power supply is needed*. Synchronized and secure - Plug My Passport into any PC, edit files, read e-mail, and view photos. Then sync all of your changes back to your home or office computer. Your data is protected with 128-bit encryption. (Windows only) Compatible - Use with Windows and Macintosh computers