Seagate Expansion 20TB External Hard Drive HDD – USB 3.0, with Rescue Data Recovery Services (STKP20000400)

Easy-to-use desktop hard drive—simply plug in the power adapter and USB cable
USB 3.0 allows fast file transfers for efficient data management
Drag-and-drop file saving right out of the box
Automatic recognition of Windows and Mac computers for simple setup (Reformatting required for use with Time Machine)
Enjoy peace of mind with the included limited warranty and Rescue Data Recovery Services

Seagate 3.5″ External HDD 20TB