The Deskstar CoolSpin internal hard drive couples high capacity with innovative CoolSpin technology providing a greater level of power efficiency and quiet operation for energy-conscious, computers. Key to CoolSpin technology is an optimization of motor speed to provide an ideal balance of performance, power utilization and acoustics. The CoolSpin technology, along with other Hitachi power management techniques, gives the CoolSpin internal hard drive power savings of up to 29% over the Deskstar 7200 RPM internal hard drive.