The LaCie Rugged Mini Portable External Hard Drive provides a large volume of 4TB storage capacity to backup all your important file content and precious moments such as photos, videos and music with an impressive transfer rate up to 5Gb/s with a drive functioning speed of 5400 RPM (rotations per minute). In addition, the drive, as its name suggests, has a hard-boiled design that can stand up to the hazards of daily living thanks to its rugged body.