The WD Elements 3TB Desktop Hard Drive come with huge storing capabilities, allowing you to save about 600,000 photos or 230 hours of video. When your internal hard drive is almost full your PC slows down. Don’t delete files. Free up space on your internal hard drive by transferring files to your WD Elements desktop storage and get your computer moving again. To transfer data rapidly this drive features USB 3.0. The small, lightweight enclosure features massive capacity and WD quality and reliability. Formatted for Windows® – Formatted NTFS and compatible with Windows 8, Windows 7, Windows Vista® or Windows XP and can also be reformatted for Mac®. It includes a free trial of WD SmartWare™ Pro™ backup software for local and cloud backup.