Western Digital My Passport 250GB
Carry your music, video, and photos in style with WD's My Passport Essential Portable Hard Drive. Big capacity in a small elegant design

These elegant portable drives are simple to use, light and easy to carry, and require no power adapter -- they are powered directly through the USB cable(Some PCs may limit power through USB ports). Works with Windows® and Mac®. Synchronize files between home and office and encrypt everything on the drive for added security.