Seagate FreeAgent GoFlex Desk v 2.0 4 TB USB 3.0 External Hard Drive - STAC4000100 (Black) for $205.18

The GoFlex Desk external drive delivers high-capacity storage and automatic, continuous backup with encryption for all your files with its pre-loaded software. The included USB 3.0 plug-and-play adapter makes it easy to connect to your PC or Mac computer and displays the drive's available storage capacity.