The WD My Book Thunderbolt Duo dual-drive storage system gives you the ideal combination of performance and capacity. And thanks to two Thunderbolt ports you get the superior data transfer speeds that only Thunderbolt technology can offer. Daisy-chain multiple devices through My Book Thunderbolt Duo and enjoy nearly unlimited flexibility and performance in your creative life.
- Revolutionary Thunderbolt technology with two Thunderbolt ports for high-speed data transfer
- Dual-drive storage system with user-selectable RAID 0/1 that automatically duplicates your data
- Compatible with Time Machine
- User serviceable hard drives
- WD SmartWare automatic continuous backup software
- HFS+ formatted
- Daisy-chain multiple devices like HD monitors, video and audio editors and media players for nearly unlimited productivity
- Handle video editing, 3D rendering and other graphics-intensive projects simultaneously
- Includes Thunderbolt cable
Did you notice?If you fill up a drive and need to replace it, simply open the case and exchange the existing drive—no tools needed.
Apple Recommends ForStore and backup data from your Mac at the unprecedented speeds of Thunderbolt technology.
What's in the Box?
- WD Dual-drive storage system with Thunderbolt connectors
- Thunderbolt cable
- AC adapter
- Quick install guide
- Other Features: Kensington Port, RAID support
- Connections: Thunderbolt
- Power Source: External power supply
- Height: 6.5 in./16.5 cm
- Width: 3.9 in./9.9 cm
- Weight: 4.73 lb./2.15 kg
- Length: 6.2 in./15.7 cm
- Mac OS v10.5, v10.6, or v10.7
- Thunderbolt port
- Windows XP/Vista/7 (requires formatting)
- Mfr. Part Number: WDBUTV0080JSL-NESN
- UPC or EAN No.: 718037817910
- Note: Products sold through this website that do not bear the Apple Brand name are serviced and supported exclusively by their manufacturers in accordance with terms and conditions packaged with the products. Apple's Limited Warranty does not apply to products that are not Apple-branded, even if packaged or sold with Apple products. Please contact the manufacturer directly for technical support and customer service.
- Warranty: Three years
Ratings & Reviews
Skip LaCie and get this instead
I upgraded to a new iMac with a larger HD, no FireWire, and Thunderbolt. This meant I needed a large-capacity Thunderbolt disk for I upgraded to a new iMac with a larger HD, no FireWire, and Thunderbolt. This meant I needed a large-capacity Thunderbolt disk for Time Machine backups. The desire to run a RAID-1 configuration for redundancy further drove up my storage capacity needs.
I originally tried LaCie's "2big Thunderbolt" product but quickly returned it when I discovered this gem from Western Digital. Compare to the LaCie, the WD is smaller, sleeker, quieter, and significantly cheaper. It also works with Kensington's cable locks, which the LaCie lacks. Finally, WD's drive utility software is simpler and cleaner, and unlike the LaCie, does not have to run in the background all the time.
This would be a 5-star review except for two nits. First, instead of a separate power "brick," the plug itself is huge. This crowds out two neighboring outlets on my UPS. Second, LaCie's mechanism for hot-swapping the internal drives is much easier (which isn't to say that the WD is difficult at all). …
- Written by George M from Madison
95 of 98 people found this useful
Great drive for the money!
I've had this for well over a year connected to our family iMac running OS X Server. I use it to store iTunes media for the home I've had this for well over a year connected to our family iMac running OS X Server. I use it to store iTunes media for the home and the Time Machine backup destination. To get the redundancy, you have to set it up as RAID1 (not the default RAID0). This does mean that the documented space is now cut in half (4TB is really 2TB, 6TB is really 3TB, 8TB is really 4TB), but you have peace of mind knowing that if one drive fails, your data is safe. I've had two failures since owning the drive, and the solution behaved as expected by rebuilding my data once the faulty drive was replaced. It looks nice and runs quiet -- get it. …
- Written by Christopher M from Wake Forest
46 of 47 people found this useful
Great Speeds with HUGE storage
I have this unit in a RAID 0 configuration and am getting Blackmagic disk speed tests around 250 - 260 Mbps. It is great for vide I have this unit in a RAID 0 configuration and am getting Blackmagic disk speed tests around 250 - 260 Mbps. It is great for video editing, game storage, and holding ALL my media files. Now I need to get another one to be able to back up all that stuff. RAID 0 is NOT the safest way to store your data. …
- Written by Max H from Irvington
41 of 43 people found this useful
Time Machine Encryption Is Not Supported
This unit does not have a built in hardware RAID controller. It uses the software RAID system in OS X, which does NOT allow the u This unit does not have a built in hardware RAID controller. It uses the software RAID system in OS X, which does NOT allow the used of disk encryption for Time Machine. …
- Written by James C from Ladera Ranch
4 of 4 people found this useful
Great Product Great Cost
I recently purchased the 8TB after my 6TB became full. I have had the 6TB version of this for 3yrs and finally filled it up. Hop I recently purchased the 8TB after my 6TB became full. I have had the 6TB version of this for 3yrs and finally filled it up. Hopefully the 8TB will take longer. The product is very quiet and of course with thunderbolt lightening fast! Love that you can choose to use as raid 0 or raid 1 (mirrored). The cost is very good and have come down a lot. i spent over $800 for the 6TB when it first came out but again it was the max storage they had and thunderbolt was new. I also like that the thunderbolt cable comes with it now. The cost is comparable if not slightly lower than its competitors. I would say buy it if you are looking for a lot of storage and you don't want to spend a lot. Again I have had the 6TB version of this for 3yrs and have never had one problem with it. Another great thing is you can daisy chain multiple devices thus keeping the 2nd thunderbolt port open on my iMac 27". …
- Written by Dale M from Hudson
Just what I needed
I use it to hold my large iTunes collection of movies and music. It works seamlessly with my iMac without any delays or issues. I use it to hold my large iTunes collection of movies and music. It works seamlessly with my iMac without any delays or issues. It is just what I needed. …
- Written by Paul M from Creve Coeur
1 of 1 people found this useful