WD Caviar SE16 640 GB drives scored a 5.9--the highest possible score--on the Windows Experience Index performance tests built into Windows Vista. These drives combine 16 MB cache with 300 MB/s transfer rate for lightning-fast performance and cool, quiet operation. Enhanced reliability features help protect the drive and the data stored on it.

• Top performance for Windows Vista - The WD Caviar SE16 640 GB SATA drive received a 5.9, the highest possible score on the Windows Vista Experience Index.

• 16 MB Cache - Bigger cache means faster performance. A massive 16 MB cache combined with advanced acoustic and power-reducing technologies make these ultra-fast drives the perfect solution for the fully loaded PC.

• IntelliSeekâ„¢ - Calculates optimum seek speeds to lower power consumption, noise and vibration. View demo >

• Ramp Load - 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.

• Preemptive Wear Leveling (PWL) - The drive arm frequently sweeps across the disk to reduce uneven wear on the drive surface.