DESC: The pocket-sized USB powered Iomega Portable Hard Drive requires no external power supply - just plug it in and go. And with the Drop Shock feature, the Iomega Portable Hard Drive is rugged and flexible enough to safely store large amounts of data in tough travel environments. Also includes EMC Retrospect HD software (via download) to protect all your files, this is a great travel companion that lets you take your files, photos and music anywhere.