Travelstar 5K160 HTS541640J9AT00 Hard Drive use perpendicular magnetic recording, delivers superior technology and reliability. With industry leading performance, low power consumption and excellent shock resistance, this product has the key attributes to support the stringent demands of portable computing. Improved electronics design further reduces the power consumption of this 5400 RPM drive, which beats its industry leading predecessor by 10%. It also runs cooler than the competition. Hitachi has also implemented Thermal Fly height Control for improved error rates, and iridium manganese chromium read heads for improved reliability.