Seagate

Seagate STKM4000400 Portable 4TB Portable Hard Drive - 2.5"

Seagate Portable 4TB Portable Hard Drive - 2.5"

Sleek and simple portable drive design for taking photos, movies, music, and more on-the-go
Drag-and-drop file saving
USB 3.0 powered
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