LaCie Mobile 80GB External USB 2.0 Hard Drive 301074 LaCie Mobile Hard Drive; USB 2.0 cable; USB power-sharing cable; LaCie Utilities CD-ROM with User's Manual, Windows 98 Drivers, Siilverlining 98, Silverkeeper, Quick Install Guide Unit Dimensions - 5.31 x 2.95 x 0.59 in. / 135 x 75 x 15 mm Hi-Speed USB 2.0 interface (USB 1.1 compatible) USB-powered - no AC adapter needed Easy to use and install