HITACHI Deskstar 7K1000 HDS721010KLA330 (0A35155) 1TB 7200 RPM 32MB Cache SATA 3.0Gb/s Hard Drive

Perpendicular magnetic recording technology
Ramp load design increases shock protection and power savings
Thermal monitoring and fly height control enhance reliability
Three low-power idle modes boost power efficiency
Silent seek acoustics achieve ultra-quiet operation
Host/drive authentication for hardware security