Barracuda 2TB Hard Drive ST2000DM001 Specifications Model Number ST2000DM001 Interface SATA 6Gb/s Cache 64MB Capacity 2TB Areal density (avg) 625Gb/in2 Guaranteed Sectors 3,907,029,168 PHYSICAL Height 26.1mm (1.028 in) Width 101.6mm (4.0 in) Length 146.99mm (5.787 in) Weight (typical) 626g (1.38 lb) PERFORMANCE Spin Speed (RPM) 7200 RPM Average latency 4.16ms Random read seek time <8.5ms Random write seek time <9.5ms RELIABILITY Annual Failure Rate <1% POWER Maximum start current, DC 2.0