Dual-drive storage system

My Book Thunderbolt Duo

My Book Thunderbolt<span class="trademark">™</span> Duo
  • Highlights
  • Features
  • Specifications
  • Reviews and Awards
  • Accessories
  • Support
  • Overview
  • About Thunderbolt
  • About RAID
  • Reviews

Revolutionary Thunderbolt™ technology.
Finally, a drive that can keep pace with your creativity. The leading-edge speed of Thunderbolt technology lets creative pros design, store, edit, render and produce graphics, movies, music and more in record time.

RAID 0/1.
Customize this dual-drive storage system to fit your project needs – RAID 0 for speed, RAID 1 for double safe data protection or JBOD to use the drives individually.

The revolutionary bi-directional Thunderbolt technology delivers unmatched speed for multi-tasking while editing HD video, rendering 3D graphics and completing other graphics-intensive projects.

Did you know...
My Book Thunderbolt Duo is a bootable external device supported by Mac OS® X. For additional information, please click here.

Ignite your creativity.

My Book Thunderbolt Duo brings performance to a whole new level. In the deadline-driven world of HD video editors and other creative professionals, this drive keeps your creativity moving with its amazing data transfer rates of up to 300 MB/s.* Finally, a drive that can keep up with your creativity.

*300 MB/s is achievable through a single system. Daisy chain two or more systems to achieve more than 600 MB/s transfer rates. Data transfer rates represented are in RAID 0 mode and for the 8TB model.

High-capacity storage

My Book Thunderbolt Duo, dual-drive storage system featuring revolutionary Thunderbolt technology, sets new standards for data transfer speeds and workflow flexibility in an affordable, high-capacity storage system.

Dual-drive RAID storage system

Features user-selectable RAID or JBOD modes. When set to RAID 0 (striping), My Book Thunderbolt Duo offers the performance you need when designing or editing graphics-intensive media files. When set to RAID1 (mirroring), this drive provides double safe data protection by automatically generating a duplicate copy of your data. Set to JBOD (Just a Bunch Of Disks) to use as two individual drives and select between HFS+J or ExFAT per disk. Ideal for running Windows OS on a Mac.

Learn more about RAID

Where creativity meets performance

Daisy chain up to six drives or devices to create, edit, render and save your creative endeavors without hesitation. Multi-task at unmatched speeds. Enjoy workflow efficiency and productivity with the speed and flexibility of dual Thunderbolt ports.


Designed with two removable drives that can be replaced when the existing drives are full. Simply open the case and exchange the existing drive and begin saving even more of your creative life. There are no tools needed.

Learn more

High-speed multi-tasking

Revolutionary bi-directional Thunderbolt technology delivers unmatched speed for multi-tasking while editing HD video, 3D rendering and completing other graphics-intensive projects.

WD Drive Utilities

Register your drive, run diagnostics, manage RAID or JBOD modes and more using WD Drive Utilities.
Thunderbolt and the Thunderbolt logo are trademarks of Intel Corporation in the U.S. and/or other countries.

Performance that keeps up with your creativity

Transfer a full-length HD movie in under 30 seconds or thousands of MP3 songs in mere minutes. Thunderbolt™ I/O technology gives you two channels on the same connector with 10 Gb/s of throughput in both directions. Data moves to and from drives up to 20 times faster than with USB 2.0 and up to 12 times faster than with FireWire 800, providing more than enough bandwidth to daisy-chain multiple high-speed drives without using a hub or switch.

The bandwidth you need for maximum data throughput

Connect your Thunderbolt technology-enabled external hard drives, media players, HD displays, media capture and editing systems through a Thunderbolt chain while maintaining maximum throughput. Then enjoy nearly unlimited flexibility and performance in your creative life.

One of the most advanced cables ever

Reduce clutter while increasing your productivity. Thunderbolt technology supports daisy chaining multiple devices through a single Thunderbolt connector so you can multi-task at maximum speed without the need for a hub or switch.
Thunderbolt and the Thunderbolt logo are trademarks of Intel Corporation in the U.S. and/or other countries.
Intel Thunderbolt

About RAID

RAID is an acronym for Redundant Array of Independent Disks. With RAID enabled on a storage system you can connect two or more drives in the system so they act as one large volume fast drive or set them up as one system drive used to automatically and instantaneously duplicate (or mirror) your data for real-time backup.

Which RAID mode should I use?

 Speed (RAID 0)

Set in high-performance mode (also called striped mode or RAID 0) the storage system gives you the power you need when you're:

  • Designing huge graphics and need a lightning-fast Photoshop scratch space.
  • Editing DV or HD video and want a smooth work flow with no dropped frames.
  • Rendering complex 3D objects or special effects.
  • Driven to be the first geek on your block with a computer so fast it blows your socks off.

 Data protection (RAID 1)

Set the system to data protection mode (also known as mirrored mode or RAID 1) and the capacity is divided in half. Half of the capacity is used to store your data and half is used for a duplicate copy. If one drive goes down your data is protected because it's duplicated.

Model #InterfaceCapacityOperating System 
WDBUTV0080JSLThunderbolt8 TBMac®
WDBUTV0060JSLThunderbolt6 TBMac®
WDBUTV0040JSLThunderbolt4 TBMac®


  • Formatted for Mac OS X Snow Leopard or Lion operating systems. Compatibility may vary depending on user’s hardware configuration and operating system.

System Requirements

  • Computer with Thunderbolt connector
  • Mac OS X 10.6.8 or higher


  • Configurable for maximum speed (RAID 0), data protection/mirror mode (RAID 1) or use the drives individually in JBOD mode.

Package Includes

  • Dual-drive storage system with Thunderbolt connector
  • Thunderbolt cable
  • AC adapter
  • Quick install guide

Mouse over each icon to see how it was calculated.

Examples of the number of photos, songs, videos and any other files that can be stored on a hard drive are provided for illustrative purposes only. Your results will vary based on file size and format, settings, features, software and other factors.

As used for storage capacity, one megabyte (MB) = one million bytes, one gigabyte (GB) = one billion bytes, and one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment. As used for buffer or cache, one megabyte (MB) = 1,048,576 bytes. As used for transfer rate or interface, megabyte per second (MB/s) = one million bytes per second, megabit per second (Mb/s) = one million bits per second, and gigabit per second (Gb/s) = one billion bits per second.

United States
Western Digital My Book Thunderbolt Duo 8TB Review
United States
Storage Review
WD My Book Thunderbolt Duo 8TB Review (WDBUSK0080JSL)
United States
PC World (Online)
The 100 Best Products of 2012
United States
PC Magazine
Western Digital My Book Thunderbolt Duo

Thunderbolt™ Cable White 2m
Price: US$34.99  In Stock

Thunderbolt™ Cable Black 2m
Price: US$34.99  In Stock