With available capacities as high as 4TB, and optional adapters to connect it to high-speed Thunderbolt ports, Seagate's FreeAgent GoFlex Desk External Drive should be able to handle your data-storage needs for years to come. The drive is fast, quiet, relatively compact, and includes handy features like an LED available-space indicator. It also comes with good automatic backup and file-encryption software, which make it easier to actually use the drive to back up your data.
How It Stacks Up
WD Elements Desktop
Game Drive for Xbox
The best portable hard drive
The 2TB Seagate Backup Plus Slim wins thanks to its reliability.
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