WD Black Mobile 320GB 2.5" Internal Hard Drive, 7200 RPM, 16MB Buffer, SATA 6Gb/s Interface

The WD Black Mobile 320GB 2.5" Internal Hard Drive features high performance, high capacity, high reliability and cutting-edge technology make up WD Black, the ideal drive for those who demand only the best. The recording head never touches the disk media ensuring significantly less wear to the recording head and media as well as better drive protection in transit. The enhanced reliability features help protect the drive and the data stored on it.