Keep compatible computers running smoothly using this Toshiba 3.5-inch 2TB hard drive. The SATA interface & 5400 rpm platter speed ensure that data is transferred quickly, while the 128MB cache acts as a buffer for reading & writing files to promote smoother retrieval. An internal shock sensor helps reduce data loss, & ramp loading technology prevents contact with the drive slider to avoid wear & tear. This Toshiba 3.5-inch 2TB hard drive uses Perpendicular Magnetic Recording technology to increase the storage density of the disc for lightweight performance.