Drop-resistant up to 2 meters, with a rubber protective bumper to endure Bumps & shakes even while the Drive is plugged in Pocket-sized drive has a built-in cable for convenient portability 2.5x faster than most portable hard drives with up to 400MB/s performance (2) (2) based on read speed & internal testing. As used for transfer rate, megabyte per second (MB/s) = one million bytes per second. Performance will vary depending on your hardware & software components & configurations. Works with PC & Mac computers, with included automatic backup software) for Windows & compatibility for time Machine (reformatting required) (3) Internet activation required 3-Year manufacturers limited warranty