WD My Book Duo
20 TB8 items in stock at supplier
Memory Size
Product details
WD External Hard Drive My Book Duo 20 TB
The My Book Duo offers enormous storage capacity and is ideal for storing photos, videos, documents, and music. With the built-in WD Red hard drives and USB Type-C connection, it achieves ultra-fast speeds. Additionally, the two USB Type-A expansion ports allow for the connection of more USB devices.
Ready-to-use RAID-0
With the standard RAID-0 configuration, the My Book Duo is ready for use with maximum speed and capacity. The included WD Drive Utilities software also allows for the setup of a RAID-1 array for redundant storage or the use as two independent hard drives (JBOD).
RAID-optimized WD Red hard drives
WD Red hard drives are known for their high reliability and are suitable for 24x7 operation. They are specifically designed for use in NAS with 1 to 8 drive bays, as well as small media servers and PCs with a RAID configuration. The RAID-optimized firmware ensures data integrity during read and write operations in a dual-drive setup.
USB 3.0 host ports
With its two USB 3.0 Type-A host ports, the My Book Duo effectively serves as a docking station, allowing for the connection of additional storage, keyboard and mouse, card readers, USB flash drives, or for syncing and charging smartphones.
256-bit AES hardware encryption and password protection
The built-in 256-bit AES hardware encryption in the My Book Duo, combined with the WD Security software, ensures that your content remains confidential and protected. Set your own password to secure the hardware.
Form factor | 3.5" |
Interface | USB 3.0 |
Power supply | Electrical connection |
Number of hard disks included | 2 x |
Documents | |
Item number | 6504047 |
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30-day right of returnReturn policy
Reviews & Ratings
Statutory warranty score
How often does a product of this brand in the «External hard drives» category have a defect within the first 24 months?
Source: Galaxus- 4.Adata0,6 %
- 4.Intenso0,6 %
- 4.WD0,6 %
- 7.Seagate0,7 %
- 8.LaCie0,8 %
Statutory warranty case duration
How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Galaxus- 3.Intenso1 day
- 4.Seagate4 days
- 4.WD4 days
- 6.SanDisk Professional5 days
- 7.LaCie10 days
Return rate
How often is a product of this brand in the «External hard drives» category returned?
Source: Galaxus- 1.WD0,9 %
- 2.LaCie1 %
- 3.Adata1,3 %
- 4.Toshiba1,5 %
- 5.Intenso1,7 %

- einfache Installation
- optionale, individuelle RAID-Einstellung
- sehr leise im Betrieb
- hohe Datentransferraten
- kein Ausschalter am Gerät
- Konfigurationstool liegt nicht bei
Mit dem WD My Book Duo macht Western Digital endgültig Schluss mit Speicherproblemen. Zudem ist das My Book Duo sehr schnell und leicht zu handhaben.
- High speed data transmission
- Large construction
The name My Book already suggests it: The WD is built for use while standing up, so the larger dimensions are not quite as disturbing. Commonality with the Elements model (5th place): The My Book has a recess for Kensington-standard locks and can thus be fixed to the desk. Good: The speed is high across the board.

- Hohe Datensicherheit durch RAID-0-Spiegelung
- Verschlüsselung
- Keine aufwendige Netzwerk-Einbindung
- In riesigen Kapazitäten erhältlich
- Als USB-Hub verwendbar
- Auf dem Schreibtisch recht laut durch 2x 3,5" Festplatten