Seagate Backup Plus Slim 1.5TB Portable External Hard Drive USB 3.0 (STDR1500100) Metal design allows you to slide the drive into your pocket, purse or briefcase and carry it with you With the Save feature, user-generated content can 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 pre-loaded NTFS driver for Mac, and use the drive interchangeably between PC and Mac computers without reformatting the drive. Impressive 1.5TB storage capacity