The 320GB My Book Essential Edition USB 2.0 External Hard Drive from Western Digital is a high-capacity external hard drive with a USB 2.0 interface and a rotation speed of 7200 rpm.
The drive is housed in an elegant design that can be, at first glance, mistaken for that of a hardbound book. This makes the drive an excellent choice for anyone who would like to have a unique and classy drive to use for external data storage. The drive features built-in power-saving, has no environmental contaminants, and ships in recyclable packaging, making it as friendly to the environment as it is to your data.
320GB holds 24 hours of DV video, 68 DVD movies, or 80,000 MP3s
USB 2.0 interface for universal compatibility
Compatible with Windows and Mac OS X