WD My Book VelociRaptor Duo 2TB External Dual Hard Drive Storage RAID Thunderbolt

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Product Feature

• Dramatic performance with WD VelociRaptor 10,000 RPM drives
• Data protection with RAID
• Daisy chain flexibility with two Thunderbolt ports

Product Description

My Book VelociRaptor Duo, dual-drive storage system features WD VelociRaptor 10,000 RPM drives and dual Thunderbolt ports delivering extreme speed for video and photo editing, 3D rendering and more.

WD My Book VelociRaptor Duo 2TB External Dual Hard Drive Storage RAID Thunderbolt Review

The big draw of this is obviously Thunderbolt and the Velociraptor drives. And yes, both are fast, but WD makes another Thuderbolt product that costs 2/3 of what this system does, and has 3 times the storage. I have it also, and I can say that for large files this device can has come 45% faster, though that's not always the case, and the speed difference almost disappears with small files. To be fair, it's hard to do a really controlled comparison, and I haven't compared them with that level of rigor. Also, I have a workstation at work that has a Velociraptor boot drive, and for random access I don't notice a speed difference between the V. and a good 7200 rpm drive. (I'm not saying that there isn't one, but it's not much for non-sequential use.)

The WD Thunderbolt devices compete with some of the other expensive Thunderbolt external drives, such as the LaCie equivalents, and the WD versions are significantly less expensive. However, I have one of the LaCie devices at work (not the competitor for this, but the competitor for the WD 6TB drive), and in my opinion they justify the price difference. Why? The LaCie drives seem better made. (I may also be prejudiced by the fact that I've had great luck with external LaCie devices, with some running for six years, and maybe the better build doesn't make a difference.)

With all of the devices I've mentioned above, the capacities assume you run RAID 0, because if you run RAID 1 (which mirrors the data) the capacities are cut in half.

What makes me uncomfortable about this device is that it gets very hot, and the drives are loud. There's nothing that can be done about that with Velociraptor drives, but it's more obvious in an open case like this than when they are inside a computer case, especially as this is likely to be on your desk.

Is the heat an issue? WD would say no, but I notice that their 6TB drive will shut itself down if it gets too hot and the fact that WD has had to build that capacity into the device suggests to me that they really aren't adequately cooled - though I'm glad the device shuts down rather than overheats. I assume that this one has the same protection, though I haven't triggered it yet.

So, if you can afford this, and don't mind the noise, and need to stream large files (as in video editing) than this may be the device for you. But I wonder about longevity. Granted it comes with a 3-yr warranty, but even so.

One nice thing is that it comes with the cable, as this saves a (last time I checked) $50.

So if I'm so hesitant, why 4 stars? Because if you need this, there's not much out there that will do the same thing and the performance is impressive for what I assume is its intended use.

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