Western Digital Scorpio Blue WD800BEVS 80GB 5.4K 2.5" SATA Hard Drive Silent - In a notebook unit, silence is gold. WD's exclusive WhisperDriveTM combines cutting-edge search algorithms to achieve one of the quietest 2.5" hard drives on the market. These algorithms also optimize how the drive searches for data, significantly improving energy consumption. Now silence (and greater battery life) is golden. Reliability and robustness - WD ShockGuardTM technology protects unit mechanics and plate surfaces from impacts. The WD SecureParkTM system parks the recording heads out of the disk surface during the start, stop and shut off the drive. This ensures that the recording head never touches the surface of the disk, improving long-term reliability thanks to the less wear of the cartridge and the better tolerance to non-operative impacts. Fast and efficient - With a rotation speed of 5400 RPM, a 12 ms access time and a SATA interface speed up to 3 Gb/s, even the most demanding customers will appreciate the performance achieved by the Scorpio Blue WD units. Compatibility: This unit is compatible with any laptop/computer that accepts 2.5" SATA hard drives. WDC WD800BEVS disc model Blue Scorpion Shape factor 2.5" Capacity 80 GB (80 x 1 000 000 bytes) Number of disks 1 Number of heads Power 2 400 RPM Rotating time 11,11 ms Average rotation capacity 5,56 ms