Western Digital My Book Thunderbolt Duo External Dual Hard Drives (Manufacturer Refurbished)

Thunderbolt Duo Hard Drives

Limited Time Remaining!
Up to 67% Off
50+ bought
67% OFF
Please complete all selections:
Accidental Damage Protection
Processing... Please wait
Free Returns
Free Shipping

Product Details

Any price comparison is to a new, non-refurbished price.

Western Digital My Book Thunderbolt Duo External Dual Hard Drives (Manufacturer Refurbished)

These hard drives are ideal for Macs, because they transfer data back and forth via dual Thunderbolt ports, whether that data is full-length movies, work projects, or the thousands of memes that you will one day make viral.

Do More with High-Speed Thunderbolt

Whether you’re uploading 4K video or backing up your entire photo library, Thunderbolt connectivity helps you move files to and from your computer smoothly. When connected, the Thunderbolt ports support data transfer speeds of up to 10GB/s—double the speed of USB 3.0—in both directions.

Dual-Drive System

Because there are dual drives built in, you can place all your files on one half, then back them up to the other half. You can also use each half individually or combine them into one megadrive for the fastest data retrieval.

Daisy-Chain Devices

The hard drive can help you daisy-chain up to seven devices such as monitors and media players to create a smooth-operating custom system for creating projects while using minimal cables.


  • Dual Thunderbolt ports for super-fast data transfer (up to 10GB/s)
  • User-selectable RAID0, RAID1, and JBOD modes, depending on whether you want fast performance, data backup, or individual drives
  • Ideal way to run Windows on a Mac
  • Daisy-chain up to 7 devices
  • Built-in WD Drive Utilities to run diagnostics or change modes
  • Formatted for Mac OS X Snow Leopard or Lion
  • Thunderbolt cable not included
  • Comes with AC power adapter
  • Product dimensions and weight:
    • WDBUPB0040JSL (4TB): 6.2”x3.9”x6.5”; 4.75lb.
    • WDBUPB0060JSL (6TB): 7”x6”x4”; 4.75lb.
    • WDBUTV0040JSL (4TB): 6.5”x6.2”x3.9”; 4.98lb.
    • WDBUTV0080JSL (8TB): 6.2”x3.9”x6.5”; 5.07lb.
    • WDBUSK0040JSL (4TB), WDBUSK0060JSL (6TB), and WDBUSK0080JSL (8TB): 6.2”x3.9”x6.5”; 4.75lb.
  • Condition: manufacturer refurbished

For questions pertaining to this deal, click the Ask a Question button below. For post-purchase inquiries, please contact customer support.

Sold by Groupon Goods. View the FAQ to learn more.

The Fine Print

Offer is not eligible for our promo codes or other discounts.

Customer Reviews

Product Picture for Customer Review

Western Digital My Book Thunderbolt Duo External Dual Hard Drives (Manufacturer Refurbished)

Rate first, then write a review.

Stephen Verified Purchaser
Dec 12th, 2017
Recently purchased a 4TB WD My Book Thunderbolt Duo External Hard Drive (manufacturer refurbished) to create a clone of my iMac using the SuperDuper! backup app. I already use a 6TB version (new purchase from WD, not a refurb) for Time Machine backups, and I wanted another ThunderBolt device for speedy backups even though they’re both original Thunderbolt spec, 10 GB/sec, which matches my iMac’s spec. Both are formatted as RAID1 using the WD Drive Utilities app. I chose both devices because they don’t require a cooling fan and, thus, operate silently. So far, the 4TB refurbished unit has performed well with no problems. Note: The Specifications section on Groupon’s webpage states: “Thunderbolt cable not included.” While I can’t speak for other orders, mine *did* include one in the box (just as the 6TB unit that I previously purchased from WD). Unfortunately, because of the spec note on the Groupon webpage, I purchased a Thunderbolt cable in advance to use with the 4TB unit. Maybe I’ll have a use for it in the future.
Was this helpful?
Thank you for your vote (Undo)
Steven Verified Purchaser
Aug 27th, 2016
Looks like new. works great! Simple set up and very fast with the thunderbolt connection. It comes set up for Raid 0. I changed it to Raid 1 for the redundancy. Using it to store all my music CD's. Saved a bunch of $ buying refurbished.
Was this helpful?
Thank you for your vote (Undo)
2 people found this review helpful
Showing 2 of 2

Average of 4 ratings

To ensure the quality of reviews, all reviews are screened for spam and content that may be offensive to other people.

Please Sign In or Sign Up to rate or vote

By purchasing this deal you'll unlock points which can be spent on discounts and rewards. Every 5,000 points can be redeemed for $5 Off your next purchase.