WD Blue 320GB Desktop Hard Disk Drive – 7200 RPM SATA 6 Gb/s 16MB Cache 3.5 Inch – WD3200AAKX

IntelliSeek: Calculates optimum seek speeds to lower power consumption, noise and vibration.Data LifeGuard: Advanced algorithms monitor your drive continuously so it stays in optimum health.NoTouch Ramp Load Technology: Safely positions the recording head