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The 4GB model goes for a street price of $279.99. The updated WD Black family comes in capacities of 1TB, 2TB, 3TB and 4TB and ships with a class-leading five-year warranty. As a result, the drive automatically allocates more cache for read data, which reduces data congestion and increases overall performance. In addition to the controller update, WD drives improved performance thanks to their Dynamic Cache Technology, which increases the HDD’s performance by improving caching algorithms in real time as well as optimizing the cache allocation between reads and writes. The WD Black 4TB has a SATA 6 Gb/s interface, 64MB cache, and is spread across five 800GB platters. WD figures performance gains of anywhere between 26%-48% depending on the capacity thanks to an improved dual-core processor and other controller and firmware improvements. This time around, the WD4003FZEX doesn’t get WD any higher capacity, but it does boast some aggressive performance claims.
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The prior 4TB model, WD4001FAEX, was a big step up at the time as it doubled the capacity of the 2TB Caviar Black and topped throughput by 12%. The 4TB Black isn’t entirely new of course, WD has been shipping a drive in this configuration for over a year. The WD Black 4TB desktop hard drive is the latest high-capacity, high-performance drive from WD.