Travelstar 5K320 is a 5400 RPM 2.5-inch hard drive. The 5K320 raises the standard for hard drive reliability with design enhancements that include altitude-sensing Thermal Fly-height Control (TFC), an improved actuator latch and fourth generation perpendicular magnetic recording (PMR) head technology. Along with the attention to ruggedness, Hitachi continues to deliver excellent performance and low-power leadership. Designed to support the multi-tasking needs of consumers and commercial users balancing mobile computing and movies, music, photos and games on the go.