Black Friday 2014 Best Buy: Seagate Backup Plus 5TB External USB 3.0/2.0 Hard Drive for only $139 for Black Friday 2014! November 29, 2014 admin Leave a comment Best Buy will have the Seagate Backup Plus 5TB External USB 3.0/2.0 Hard Driveon sale for $139 this week for a Black Friday 2014 promotion! Link to Best Buy here!