WD Elements portable storage offers reliable, high-capacity storage to go, ultra-fast USB 3.0, universal connectivity, and massive capacity. Includes a free trial of WD SmartWare Pro backup software. Maximum transfer rates When connected to a USB 3.0 port, WD Elements delivers maximum performance for data transfers. Transfer a full-length HD movie in a fraction of the time it takes with USB 2.0. USB 3.0 and USB 2.0 compatibility Works seamlessly with the latest USB 3.0 devices and is backward compatible with USB 2.0 devices as well. High capacity in a small enclosure The small, lightweight design offers high-capacity storage, making WD Elements the ideal companion for value-conscious consumers who want to take their important files with them. Free trial of WD SmartWare Pro backup software WD Elements includes a free trial version of WD SmartWare Pro backup software. With it you can back up files to the local WD Elements drive or you can back up to the cloud using your Dropbox account. Improve PC performance 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 drive and get your PC moving again. Formatted for Windows Formatted NTFS and compatible with Windows 8, Windows 7, Windows Vista, Windows XP. Can be reformatted for Mac.