DESC: The 500GB Momentus 7200.4 SATA 3Gb/s 2.5" Internal Hard Drive delivers the highest available capacity and performance in a laptop hard drive, while drawing only .05 percent more power than a 5400-RPM laptop drive. The drive comes with a variety of advanced features including Native Command Queuing, state-of-the-art error correction, a fluid dynamic bearing motor, S.M.A.R.T. drive monitoring and reporting and the ability to read multiple and write multiple commands.