Barracuda 500GB Hard Drive PN: ST500DM002 7200 RPM performance–from 250GB all the way up to 3TB OptiCache™ technology further exploits big 64MB cache sizes and improved micro processor capabilities SATA 6Gb/s technology to further maximize performance :: Specifications Interface: SATA 6Gb/s Cache: 16MB Capacity: 500GB Areal density (avg): 329Gb/in2 Guaranteed Sectors: 976,773,168 PHYSICAL Height: 19.98mm (0.787 in) Width: 101.6mm (4.000 in) Length: 146.99mm (5.787 in) 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
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