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There will certainly be specific setups that will demand large storage capacities in a single 3.5in drive enclosure, and if money isn't an issue then there's clearly a lot to like here. This has driven prices of 1TB drives down significantly – you're looking at spending as little as £54 for such capacities, making the Caviar Black look outrageously costly. The standard capacity for new platters rolls in at the 1TB mark, and this forms the sweet spot for internal drives too. There was a time when this would have been a bargain, but the market has moved on considerably since then. The Caviar Black 2TB edition is just a little too expensive for serious consideration at approx £250.
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While performance certainly helps the cause, hard drives aren't only about speed, and this is where we bump into a fundamental problem with this new drive – its price. WD covers the drive with a generous five-year warranty, though, which should be enough for most users. The drive can be loud, and it can run hot. It achieves this incredible seek time thanks to a new dual-stage actuator that combines a fast course movement with a finer precision stage that completes the seeking. In testing (using HDTach) we saw an average read and write performance of 113.1MB/s and a random access time of 11.3ms. Western Digital has crammed 2TB of storage into the Caviar Black by using four 500GB platters spinning at 7,200rpm.
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It isn't quite SSD level fast, but compared to your average hard drive it has a serious turn of speed. It does, however, pack an incredible punch in the performance stakes thanks in part to a huge 64MB cache and two-stage actuator to make seek times speedy.