Western Digital Thunderbolt

Western Digital Thunderbolt

As seen demonstrated at the CES and Macworld conventions earlier this year, the first Western Digital Thunderbolt hard drive has now been released.

Called the My Book Thunderbolt Duo, it is a Thunderbolt enabled version of the already popular WD My Book external hard drive range.

There are two versions currently available:

4TB (2 x 2TB)


6TB (2 x 3TB)

The two 3.5 inch hard drives come preconfigured with RAID 0 array as default. You can however reconfigure the two hard drives to utilise RAID 1 using the supplied software, WD Drive Utilities.

WD My Book Thunderbolt DuoRAID 0: offers you all the drive space with the best performance, but there is no redundancy. If a drive crashes and you don’t have a backup, you lose your data.

RAID 1: essentially mirrors the drives. You half your drive space, but you have redundancy built in. If a drive crashes, you simply replace it and your data is still safe.

WD have installed drives from their SATA green range. They use less energy but this does affect performance to some extent.

Thunderbolt Hard Drive

Each My Book has two Thunderbolt ports, enabling you to add it to an existing daisy chain or link a number of My Books together if you wished.

Thunderbolt Port

With HFS+ formatted hard drives, the WD My Book Thunderbolt Duo is compatible with any Thunderbolt enabled MAC running OS X 10.6.8 or later. Just plug your Thunderbolt cable into your Macs Thunderbolt port and you are good to go.

You’ll have to purchase a Thunderbolt cable separately though, as this isn’t included with the My Book Thunderbolt Duo.


Thunderbolt Hard Drive

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