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| Hard drive | |
| Drive capacity | 20 TB |
| System requirements | |
| Windows operating systems supported | ![]() |
| Mac operating systems supported | ![]() |
| Ports & interfaces | |
| USB connectivity | ![]() |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 2 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity | 1 |
| Weight & dimensions | |
| Weight | 2.38 kg |
| Height | 180 mm |
| Width | 100 mm |
| Depth | 160 mm |
| Operational conditions | |
| Storage temperature (T-T) | -20 - 60 °C |
| Operating temperature (T-T) | 5 - 35 °C |
| Storage | |
| RAID levels | 0, 1 |
| Number of storage drives supported | 2 |
| Storage drives installed | ![]() |
| Maximum supported storage capacity | 20 TB |
| Number of storage drives installed | 2 |
| Installed storage drive type | HDD |
| Supported storage drive types | HDD |
| Total installed storage capacity | 20 TB |
| Packaging content | |
| Cables included | USB |
| Design | |
| Chassis type | Desktop |
| Product colour | Black |
| Device class | Home & Home Office |
| Logistics data | |
| Harmonized System (HS) code | 84717020 |
| EAN | 0718037856704 |
| Warranty | 1 year |
The My Book™ Duo drive has massive capacity for storing photos, videos, documents and music. RAID-0 mode provides super-fast performance with up to 360MB/s sequential read speeds (using the USB Type-C™ port). Switch to RAID-1 configuration for redundancy and to mirror data on the WD Red™ drives inside. A USB Type-C port with all cables included makes it universally compatible (supports USB 3.1 Gen 1/3.0/2.0). Two USB 3.0 Type-A hub ports deliver flexibility for additional accessories.
Massive Capacity
The My Book™ Duo drive has up to 20TB capacity with a single cable. Free up valuable space on all your computers. Store and back up your photo, video and music collections, and important documents in one reliable place.
RAID-0 Ready Out of the Box
Ready to perform at maximum speed and capacity in default mode, RAID-0. Reconfigure the drive to RAID-1 for redundancy (data mirroring), or use it as two independent drives (JBOD) with the included WD Drive Utilities™ software.
RAID-Optimized WD Red™ Drives
The My Book™ Duo drive comes with RAID-optimized WD Red™ drives inside to deliver high-speed, quality storage to rely on. RAID-optimized firmware is perfect for two-disk array systems with auto management of drive operations to help ensure read/write cycle data integrity.
Massive Capacity
The My Book™ Duo drive has up to 20TB capacity with a single cable. Free up valuable space on all your computers. Store and back up your photo, video and music collections, and important documents in one reliable place.
RAID-0 Ready Out of the Box
Ready to perform at maximum speed and capacity in default mode, RAID-0. Reconfigure the drive to RAID-1 for redundancy (data mirroring), or use it as two independent drives (JBOD) with the included WD Drive Utilities™ software.
RAID-Optimized WD Red™ Drives
The My Book™ Duo drive comes with RAID-optimized WD Red™ drives inside to deliver high-speed, quality storage to rely on. RAID-optimized firmware is perfect for two-disk array systems with auto management of drive operations to help ensure read/write cycle data integrity.
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- leaflet (English)
- manual pdf (English)
The above technical details are for reference only and may change without notice. We reserve the right to correct printing errors and use illustrations for guidance. Some text may be auto-generated or machine-translated, which could lead to inaccuracies.

