iomega Prestige 500GB external portable hard drive for PC or Mac. USB 2.0. Model 34270. Drive must be reformatted for use with a Mac. Brushed aluminum finish. Dimensions: 7.82 x 4.75 x 1.22 inches. Weight: 2.15 lbs. Used literally once or twice to backup a small number of files. In excellent barely used condition. Power adapter and USB data transfer cable included. Shipped (posted) within 24 hours on a business day.