DESC: The Hitachi Travelstar 5K100 series is a 9.5mm high, 5400 RPM, 2.5-inch mobile hard disk drive ideal for today's data-intensive business needs. The Travelstar 5K100 brings a new generation of 5400 RPM mobile solutions to the long legacy of the Travelstar family of hard disk drives.Designed to meet the demanding needs of today's data-intensive requirements, the Travelstar 5K100 leverages proven technologies such as True Track Servo, which eases system integration, enhances hard disk drive reliability, and adds robustness against vibration and disk shift, Drive Fitness TestTM (DFT), and S.M.A.R.T. technology which is designed to enable a hard drive to predict impending catastrophic failure.