Seagate Backup Plus 2TB USB 3.0 Desktop External Hard Drive for Mac (STCB2000900) Super Speed USB 3.0 transfer (backward compatible with USB 2.0 at USB 2.0 transfer speed) Easy backup for your digital life on your computer and the cloud Save feature, allows user-generated content to be backed up from your favorite social networks Share feature allows multiple files to be uploaded to social networks at once from your computer Install the downloadable HFS+ driver for PC and use the drive interchangeably between Mac computers and PC's without reformatting Upgrade from the included USB 3.0 interface to Thunderbolt or FireWire 800 technologies with the additional adapter (purchased separately)