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Extreme HDD: Western Digital VelociRaptor WD1000DHTZ 1TB
Built around a 10,000-RPM spin speed platters, these SATA 6 Gb/s drives include a 64 MB cache, the Western Digital VelociRaptor drives are the best that money can buy.
While the performance doesn't come close to that of a solid state drive, the VelociRaptor is a blazing fast hard drive, and is packed with features such as pre-emptive wear leveling and no-touch ramp load head technology that help deliver the highest possible reliability rating of any SATA drive.
Image source: Western Digital.