Toshiba Storage Device Division today announced its latest offering, a 400GB external drive. The drive connects via USB 2.0 and offers an 8MB buffer. The overall dimensions are 0.65 inch by 3.2 inches by 5 inches with a weight of 6oz. NTI Shadow software is preloaded, allowing automatic backup of documents and files. Shadow runs in the background and detects new or edited files, then saves them to the drive without any need for user action.

The drive is powered by USB, with the cable included, and compatible with Windows XP/Vista or Mac OS X 10.3.9 or later. The Toshiba 400GB external HDD will be available in blue, green, red, or gray colors and should ship in October.