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The Western Digital 3 TB internal hard-disk drive, the latest addition to the Caviar Green family of internal SATA drives, is supported in 64-bit versions of Windows Vista and Windows 7. WD has achieved the higher capacity by increasing the areal density to 750 GB per platter. In addition, the company is using Advanced Format technology, which writes 4,096 bytes per data sector. That number is eight times the 512 bytes used for years in drives. Advanced Format is an industry standard available to other hard drive makers. WD's new drive breaks the 2.19 TB limit that existed before the latest advancements. The 3TB Caviar Green manufacturer's suggest retail price is $239. A 2.5 TB model is available for $189.

Related:
Western Digital Launches First 3TB Hard Drive

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