It connects to the system over USB 3.0 and draws power over an external DC power supply. Measuring 39 x 123 x 189 mm, it weighs about 1 kg. Silicone padding inside allows some amount of mechanical shock protection to the drive. The drive normally draws 18W of power, but can reduce that to just 1.6W, using the bundled ecoManager software, which spins down the drive when idling.
Source: TPU