Model Brand Western Digital Series Scorpio Blue Model WD3200BEVT Packaging Bare Drive Performance Interface SATA 3.0Gb/s Capacity 320GB Cache 8MB Average Seek Time 12ms Average Latency 4.2ms RPM 5400 RPM Physical Spec Form Factor 2.5" Features Features Quiet - In a notebook drive, silence is golden. WD's exclusive WhisperDrive combines state-of-the-art seeking algorithms to yield one of the quietest 2.5-inch hard drives on the market. These algorithms also optimize the way a drive seeks for data, which significantly improves power consumption. So now silence (and longer battery life) is golden.   Reliable and Rugged - WD's ShockGuard technology protects the drive mechanics and platter surfaces from shocks. WD's SecurePark parks the recording heads off the disk surface during spin up, spin down and when the drive is off. This ensures the recording head never touches the disk surface resulting in improved long term reliability due to less head wear, and improved non- operational shock tolerance.   Tested for Compatibility - We perform tests on hundreds of systems and a multitude of platforms in our FIT Lab and Mobile Compatibility Lab to give our customers confidence that our drives will work in their systems