WD My Book VelociRaptor Duo review

A VelociRaptor drive for the Thunderbolt toting Mac user

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  • Very fast drives
  • Comes with Thunderbolt cable
  • Two Thunderbolt ports


  • Pricey

It's been over nine months since Apple introduced Thunderbolt, and the port has gradually been rolled out across the range. However, Thunderbolt peripherals, including drives, remain relatively rare.

With the My Book VelociRaptor Duo, Western Digital has taken two of the fastest drives it makes, with a SATA 6Gb/s interface and disks rotating at 10,000RPM, and put them in a similar enclosure to its Thunderbolt Duo drive. And it certainly is fast.

We tested the VelociRaptor Duo using QuickBench's Large Test, and found it was as fast as you'd expect. In RAID 0 mode, with the drives striped to appear as one logical volume, the drive's read speed was 368MB/sec, and it wrote at 363MB/sec. Switching into RAID 1, with the two drives mirroring each other, it was significantly slower: 196MB/sec read speed, and 183MB/sec writing.

There are other nice touches: two Thunderbolt ports, so you can daisy-chain a monitor or other peripherals from it. And there's easy access to the inside, making it quick to replace a drive if one fails.

There's a steep price to be paid for all this. But if you want the maximum speed possible from a drive, it's worth the money.

Tech Specs

Product TypeDAS Array
Number of Total Expansion Bays2
Number of 3.5" Bays2
Total Hard Drive Capacity Installed2 TB
Number of Hard Drives Supported2
Number of Hard Drives Installed2
Brand NameWD
Form FactorDesktop
RAID Levels1, JBOD
Host InterfaceThunderbolt
Green CompliantYes
Green Compliance Certificate/AuthorityWEEE, RoHS, ENERGY STAR
Country of OriginThailand
Height165 mm
Width99 mm
Depth157 mm
ManufacturerWestern Digital Corporation
Product ModelWDBUWZ0020JBK
Product NameMy Book VelociRaptor Duo Dual-Drive Storage System
Product LineMy Book VelociRaptor Duo
Manufacturer Part NumberWDBUWZ0020JBK-EESN
Manufacturer Website Addresshttp://www.wdc.com
Marketing Information

My Book® VelociRaptor™ Duo, dual-drive storage system unites two 10,000 RPM WD® VelociRaptor™ drives with revolutionary Thunderbolt™ technology for extreme speed. Daisy chain more drives for even more speed and higher capacity; then add peripherals and enhance your productivity. Customize this drive with user-selectable RAID 0/1 or JBOD.

Package Contents
  • My Book VelociRaptor Duo Dual-Drive Storage System
  • Thunderbolt Cable
  • AC Adapter
  • Quick Install Guide
Limited Warranty3 Year
Weight (Approximate)1.90 kg