SimpleTech by Hitachi [re]drive R500U 500 GB Turbo USB 2.0 External Hard Drive (Grey/Bamboo) Energy-efficient 500GB Turbo USB 2.0 external hard drive Crafted from renewable bamboo and recycled aluminum; Energy Star AC Adapter Turbo USB is up to 25 percent faster than USB 2.0 Includes award-winning Fabrik backup software Measures 4.75 x 7.50 x 1.60-inches; 1 year warranty