G-Technology G-Drive Mobile 500GB External Hard Drive, Silver: * 500GB Expanded digital storage * USB 3.0, USB 2.0 Flexible interface with fast transfer speeds * 5400RPM For fast access and performance * Plug n play What It Holds: * Photos Up to 333,000 * Music Up to 142,000 songs * Video Up to 263 hours of HD movies System Requirements: * Mac OS X 10.5 or newer * Windows (requires formatting) What"s Included: * Hard Drive * USB Cable * Quick Install Guide Support and Warranty: * 3-year limited warranty