HDD capacity has been increasing over the years. From my still in use HDD of 80GB, it has grown to 160GB, 500GB, 1TB and 1.5TB. Seagate Barracuda XT up the ante with world's first 2TB 3.5" SATA3 HDD. It supports SATA-IO's Serial ATA 6Gb/s interface. The Barracuda XT is built with 4 platter 7200rpm framework and comes with a 64MB cache.
This new HDD looks identical to the older Barracuda series. The most important changes would be the enlarged cache and also the 6Gbps (SATA3) interface. As it is still the traditional HDD, it is able to achieve a burst speed of 6 Gbps in theory. A sustained data rate should be around 138MB/s (spec). In this review, we check out if it can achieve that.
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Original URL, circa 2009: http://www.ocworkbench.com/2009/seagate/seagate-barracuda-xt-sata3-6gbps-hdd-review/g1.htm