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Description
WD My Book Duo 20TB Two-Bay USB 3.0 RAID Array (2 x 10TB)2 x 10TB WD Red Hard Drives Two Drive Bays USB 3. 0 Type C & USB Type A Interfaces Supports RAID 0, 1, and JBOD Configured as RAID 0 Sequential Read Speeds of up to 360 MB s 2 Port USB 3. 0 Hub Formatted NTFS for Windows Reformatting Required for Mac 256 Bit AES Encryption The WD My Book Duo 20TB USB 3. 0 RAID Array features two 3. 5" drive bays that each sport a 10TB hard drive to provide a total capacity of 20TB for USB Type C and USB Type A
- 2 x 10TB WD Red Hard Drives
- Two Drive Bays
- USB 3.0 Type-C & USB Type-A Interfaces
- Supports RAID 0, 1, and JBOD
- Configured as RAID 0
- Sequential Read Speeds of up to 360 MB/s
- 2-Port USB 3.0 Hub
- Formatted NTFS for Windows
- Reformatting Required for Mac
- 256-Bit AES Encryption
The WD My Book Duo 20TB USB 3.0 RAID Array features two 3.5" drive bays that each sport a 10TB hard drive to provide a total capacity of 20TB for USB Type-C and USB Type-A systems. The two included hard drives are WD Red drives designed for high-performance and reliability. WD has configured the drives in RAID 0 and lets you reconfigure them in RAID 1 or JBOD, using the included WD Drive Utilities software program. The My Book Duo comes with a USB 3.0 Type-C port along with two USB cables that allow you to connect to a typical USB port or a reversible USB Type-C port on the host system. With RAID 0 and USB 3.0 technology, the My Book Duo delivers sequential read speeds of up to 360 MB/s.
Other notable features include a 2-port USB 3.0 hub, which expands the host system's connections, and AES hardware encryption that helps prevent unauthorized access to sensitive data. In addition, the My Book Duo is pre-formatted in NTFS for Windows systems and requires a reformat for use with Mac.
- Capacity
- The My Book Duo drive provides 20TB of storage capacity with a single connection. This amount of digital storage space lets you hold and back up your photos, videos, documents, and songs.
- RAID 0
- The My Book Duo is preconfigured in a RAID 0 array that grants maximum speed and capacity. Utilizing the included WD Drive Utilities software, you can reconfigure the drives in a RAID 1 for redundancy or JBOD array as two independent drives.
- WD Red Drives
- Two WD Red drives are included to provide high-speed and reliable storage. To help ensure read/write cycle data integrity, RAID-optimized firmware is suitable for a two-disk array system with auto management of drive operations.
- Compatibility
- With the included USB Type-C to Type-C and USB Type-C to Type-A cables, the My Book Duo supports a wide-variety of systems.
- Two-Port USB 3.0 Hub
- The My Book Duo drive can serve as a quasi-docking station with two USB 3.0 Type-A ports designed for accessories, such as an additional storage device, keyboard and mouse set, card reader, and mobile devices.
- Encryption
- The My Book Duo drive comes with 256-bit AES hardware encryption with WD Security software built in to help keep private content secure. You can set a personalized password to activate hardware encryption and data protection.
UPC: 718037856919
In the Box
WD My Book Duo 20TB Two-Bay USB 3.0 RAID Array (2 x 10TB)
- USB Type-C to Type-C Cable
- USB Type-C to Type-A Cable
- AC Adapter
- Disk Replacement Tool
- Limited 3-Year Warranty
| Capacity | 20 TB (2 x 10 TB) |
| Drive Bays | 2 |
| Sequential Read Speed | Up to 360 MB/s |
| Host Interface | 1 x USB 3.0 Type-C |
| Ports | 2 x USB 3.0 Type-A ports 1 x Power Supply (DC in) |
| Operating Temperature | 41 to 95°F / 5 to 35°C |
| Non-Operating Temperature | -4 to 149°F / -20 to 65°C |
| AC Input Voltage (AC Adapter) | 100 to 240 VAC |
| AC Input Frequency | 50/60 Hz |
| Languages for Software | English, Chinese (Simplified), Chinese (Traditional), Czech, Dutch, French, German, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Russian, Slovakian, Spanish, Swedish, Turkish |
| Languages for User Manual | English, Arabic, Chinese (Simplified), Chinese (Traditional), Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hungarian, Indonesian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Romanian, Slovakian, Spanish, Swedish, Turkish |
| Supported Operating Systems | Windows 10, Windows 8.1/8, Windows 7 Mac OS X 10.12 (Sierra), Mac OS X 10.11 (El Capitan), Mac OS X 10.1 (Yosemite), Mac OS X 10.9 (Mavericks) Reformatting require for use with Mac |
| Compliance | NRCAN, RoHS |
| Dimensions | 6.3 x 3.9 x 7.1" / 160 x 100 x 180 mm |
| Weight | 5.3 lb / 2.4 kg |
| Packaging Info | |
|---|---|
| Package Weight | 7.0 lb |
| Box Dimensions (LxWxH) | 11.3 x 8.8 x 6.2" |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 1958 reviews
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Product Reviews
★★★★★ 5
4 Paws up! My dogs LOVE them
Flavor Name: Variety Packs, Size: 3 Pack, Set name: Large, Flavor Name: Variety Packs, Size: 3 Pack, Set name: Large
I have 2 large dogs who LOVE THESE.
A Great Pyrenees mix who’s a skinny 80lbs and a lab/terrier mix who’s a chunky 50lbs. They both love bones and can REALLY chew through them quickly so I’m really picky about what I buy them.
Here is what is important to me and how I rate and choose bones. These are my comments on this bone set specifically:
Do they break/splinter?
-They don’t splinter, I have seen smaller pieces that have broken off and when the bone gets down to the end (but this is normal with bones) at which point those pieces can be thrown away. I have never had an issue with them choking, being too small or hurting my dogs though and they are aggressive chewers so I could see this happening with some dogs and never happening with others. 4/5 stars for this.
Do they smell/leave stains on the carpet?
-Nope! No odor and they actually leave my dogs breath smelling better and their teeth cleaner! 5/5 stars
Does it upset my dog’s stomach? (My bigger guy can’t tolerate a LOT of things, he vomits often and also gets diarrhea if he eats the “wrong” thing so I have to be very cautious.)
-NOT at all! No upset tummies. This is always very, very important to me. Make sure you have lots of water nearby for your pups though, these will make them very thirsty. 5/5 stars
Do they hurt my dogs tongue, mouth or teeth?
-Nope, no issues with this. They’re able to gnaw into these aggressively without hurting themselves. 5/5 stars
Are they gone in 2 seconds?
-No! I’m always worried the “stuffed” bones will be left in the dust after the stuffing is all gone but my dogs will still keep chewing on these after the stuffing is gone. They still enjoy the bones and they last for quite some time, weeks at minimum. I can also stick some peanut butter or other treats back in the middle after they get the original stuffing all out of them to “reuse” them if it seems like they’re getting a little bored with them. 5/5 stars
Do my dogs ACTUALLY LIKE THEM?
-They love them. 5/5 stars
Price?
-Great and totally affordable. $20 for 3 of them.. so less than $7/bone. This is comparable to a bone from the pet store and these last a lot longer than something you would find there in the “fresh” grocery-store-like-section of the pet stores.
I’m an avid review reader, especially when it comes to items for my fur babies because I want the best for them. I truly love these bones and will keep buying them.
I will continue to buy these!
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Reviewed in the United States on August 26, 2019
★★★★★ 4
⭐️⭐️⭐️⭐️ Finally Found a Long-Lasting Bone That Actually Keeps My Dog Busy
Flavor Name: Variety Packs, Size: 3 Pack, Set name: Large
I’ve tried a lot of filled bones and chew treats over the years, and most fall into two categories: gone in 5 minutes, or upset stomach later. These filled beef shank bones hit the sweet spot.
The bone itself is thick, dense, and real, not a thin, brittle shell. My medium-large dog is an aggressive chewer, and this keeps him occupied for a solid 30–45 minutes working on the filling, then even longer gnawing on the bone afterward.
The filling smells fresh and appetizing (not rancid or overly greasy), and my dog goes crazy for it. We’ve tried the cheese-style and peanut butter–style fillings, and both were a big hit. No crumbly mess, no weird residue, and no digestive issues so far.
What I really appreciate is that these feel safer than many cheaper alternatives. The edges don’t splinter, and the bone wears down gradually instead of cracking.
Why I’ll keep buying these:
• Long-lasting even for power chewers
• Real beef shank bone, not pressed junk
• Filling dogs actually care about
• Helps with boredom and anxiety
• Good value compared to pet store brands
Minor cons:
• Can get a little smelly after heavy chewing
• I supervise and take it away when it gets small (as with any bone)
If you’re tired of wasting money on chews that disappear in minutes, these are a fantastic upgrade. My dog is obsessed, and I finally feel good about what I’m giving him.
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Reviewed in the United States on February 5, 2026
★★★★★ 5
Best bones out there
Flavor Name: Variety Packs, Size: 3 Pack, Set name: Large
These are the best bones I’ve ever bought. I have a lab puppy and as you can imagine most bones don’t last long around here, but this one keeps him entertained for days.
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Reviewed in the United States on June 4, 2026
★★★★★ 5
Happy doggy dancing my ensue
Flavor Name: Variety Packs, Size: 1.26 Pound (Pack of 1), Set name: Small
I haven’t tried them, but the dogs seem to like them. They do that tippy tappy happy dance when these come out.
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Reviewed in the United States on April 26, 2026
★★★★★ 3
Sturdy
Flavor Name: Variety Packs, Size: 3 Pack, Set name: Large, Flavor Name: Variety Packs, Size: 3 Pack, Set name: Large
Ok so I'm very happy that my standard poodle seemed to really enjoy this product. She was lacking and biting it for hours and days. That said she has still yet to make a dent in the bone. It seems to be too hard and too thick for her. I was surprised how heavy it was! It is large enough it is completely safe to leave her in the other room with. No strange odor or transfer of color. I'd say for the cost it isn't worth it as she is only getting filling and not able to eat the bone for some reason. Then again she is entertained for hours..so maybe so. Doesn't seem to bother her sensitive tummies either.
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Reviewed in the United States on May 7, 2026