The WD WD Scorpio Blue 500GB SATA 2.5" Internal Hard Drive features ample storage, quiet operation and low power consumption. With a 500GB storage capacity, SATA interface and transfer speeds up to 3 Gb/s, it's ideal for demanding mobile applications that require high performance. The Scorpio Blue benefits from ShockGuard technology that protects the drive mechanics from shocks. It also uses SecurePark, which prevents the recording heads from resting on the disk during spin up, spin down and when the drive is off. This results in a more reliable drive due to the limited head wear. The Scorpio Blue is also tested rigorously to ensure compatibility with most systems.