Premium RAID Storage
My Book Duo
Interface: USB 3.0
Capacity: 4 TB - 8 TB
Performance and reliability.
Dual-drive performance offering up to 290 MB/s* transfer speeds, massive capacity and integrated WD Red NAS drives makes this the perfect storage solution for all your digital libraries.
Comprehensive data protection.

Protect your digital collections and important files with local, cloud and system-level backup options, featuring hardware encryption and password protection for optimum security.
Speed and security.

My Book Duo ships preconfigured in RAID 0 for maximum performance and capacity with the options of choosing RAID 1 for ultimate data protection or JBOD to use the drives individually.
Transfer, save and protect your photos, videos, music and other massive files to free up valuable space on your computers. Featuring blazing-fast transfer speeds, local, cloud and system-level backup options, hardware RAID and password protection, My Book Duo is the ultimate storage solution offering the capacity and security you need.
Dual-drive performance with up to 290 MB/s data transfers
Transfer a full HD movie in just under 20 seconds. With ultra-fast transfer speeds up to 290 MB/s, get the speed you need to transfer your entire media collection with ease.*
Read speeds (MB/s) for HD video. Performance based on a 4 GB DVD movie files. Performance testing by WD resulted in actual transfer rates of 290 MB/s on 4 - 8 TB systems. Performance may vary based on operating system and hardware configuration.
Massive capacity to hold all your large media files
My Book Duo is your storage vault. With up to 8 TB of capacity, you can organize and save your entire photo, video and music collection, and other important documents in one safe place.
Complete backup solutions to secure your data from loss.
My Book Duo provides multiple backup options to help protect your media collection and important files with local, cloud and system-level backup.
Multiple data management options
Preconfigured in RAID 0 for maximum performance and capacity out-of-the-box or choose RAID 1 for ultimate data protection or JBOD to use the drives individually. True hardware RAID provides an independent CPU to manage RAID volumes and maximize bandwidth for reduced bottlenecks and improved data throughput.
Fast and reliable hardware encryption with password protection
My Book Duo provides 256-bit AES hardware encryption; the most secure data encryption available. My Book Duo also provides password protection to ensure your entire media collection and important files are protected from unauthorized access.
Expand capacity and organize your workspace with two high-speed USB 3.0 ports
My Book Duo features two additional USB expansion ports allowing you to connect additional devices, such as another external drive to increase your storage, or simultaneously charge your smartphones, tablets or other USB devices.
Configure, manage and diagnose your drive with WD Drive Utilities
Youre in complete control. With this software you can run drive diagnostics, manage RAID configurations, erase and format your drive, register your drive and more.
Easy to set up, easy to use
My Book Duo is pre-formatted NTFS and is ready to use right out-of-the-box for Windows OS users. The drive can also be easily reformatted for Mac OS X.
Ultra-reliable with WD Red NAS drives
My Book Duo ships with integrated WD Red NAS hard drives, designed and tested for reliability and optimal performance in small RAID environments.
User serviceable enclosure
Ready to upgrade your drives to expand storage capacity? With the simple push of a button, pop open the enclosure and insert new drives with ease. No tools required.
Want to upload, access and share your files from anywhere?
If you are looking for the capacity that My Book Duo offers plus anywhere access, choose WD’s dual-drive personal cloud storage solution, My Cloud Mirror. Get all the cloud storage you need without the monthly fees with the ability to upload, access and share your files from anywhere using your smartphones, tablets and computers.
Management & Protection
Speed (RAID 0)
Preconfigured performance mode provides disk striping across all drives in the RAID drive group. RAID 0 does not provide data redundancy but does provide the best performance of any RAID levels. RAID 0 breaks up data into smaller segments and stripes the data segments across each drive in the drive group to maximize capacity.
Data protection (RAID 1)
Set the system to data protection mode (also known as mirrored mode) and the capacity is divided in half. Half of the capacity is used to store your data and half is used for a duplicate copy offering twice the protection. If one drive goes down your data is protected because you have a second copy on the other drive.
JBOD is the use of one or more drives not in a RAID configuration but managed as separate logical volumes.
Hardware RAID
True hardware RAID provides an independent CPU to manage RAID volumes and eliminates strain from the host system CPU providing optimal drive speed and performance.
Local Backup
WD SmartWare Pro backup software
WD SmartWare Pro automatic backup software offers an easy way to back up and protect your important files.
  • Choose how, when and where you back up your files
    File backup lets you choose the specific files and folders that you want to protect or you can back up your files based on category like photos, music and videos. You can also pick between automatic, continuous backup or schedule the day, time and frequency of your backup.
  • Bring back lost files with ease
    If you ever accidentally delete an important file or need to get an earlier version of a file, WD SmartWare Pro helps retrieve the file in seconds with an easy-to-use retrieve interface.
  • Visual interface shows backup progress
    WD SmartWare Pro features a visual user interface with gauges that display how much data you have to be backed up in each category. As your backup progresses, the gauges change color showing the backup in real-time.

Cloud Backup
Dropbox cloud integration
WD Smartware Pro backup software offers Dropbox cloud integration. Simply add your Dropbox account information and you can quickly back up your My Book Duo to the cloud giving you an offsite copy of your most important files. And, you can also back up the files in your Dropbox cloud account to your My Book Duo giving you a second copy of your cloud - safe and secure in your home. *
Dropbox account required for cloud backup. Cloud services features and apps may be changed, terminated or interrupted at any time and may vary by country.
System-Level Backup
Acronis True Image WD Edition software
Acronis True Image WD Edition software ensures the security of all of the information on your PC. With it, you can back up the operating system, applications, settings and all of your data. Back up the entire system disk drive or selected partitions.
  • Disaster recovery
    Use Acronis True Image WD Edition to back up your critical system files to your My Book Duo drive. The Acronis software provides you with all the essential tools to recover your computer system should you lose data, accidentally delete critical files or folders, or suffer a complete hard disk crash.
  • Back up system files before upgrading your OS
    When you're ready to upgrade your operating system, back up your system files using Acronis so that you can quickly reinstall the necessary files to be up and running quickly. If anything goes wrong with your upgrade, you can easily revert back to the previous OS.
  • Supported operating systems
    Acronis True Image WD Edition software is compatible with the following Windows operating systems:
    • Windows XP SP3
    • Windows XP Professional x64 Edition SP2
    • Windows Vista SP2 (all editions)
    • Windows 7
    • Windows 8
  • Free download
    As the owner of a new My Book Duo premium RAID storage drive, you can download Acronis True Image WD Edition software for free to start protecting your critical system files right away.
Product Specifications  
Interface USB 3.0
Physical Specifications  
Capacity 4 TB
Physical Dimensions  
Height 6.50 Inches
Depth 3.9 Inches
Width 3.09 Inches
Weight 4.60 Pounds
Height 165 mm
Depth 99 mm
Width 99.00 mm
Weight 2.09 kg
Environmental Specifications  
Temperature (English)
Operating 32 F to 95 F
Non-operating -40 F to 158 F
Temperature (Metric)
Operating -0 C to 35 C
Non-operating -40 C to 70 C
Electrical Specifications  
Current Requirements
Power Dissipation
AC Input Voltage 100-240 VAC
AC Input Frequency 47-63 Hz
Operating System
Compatibility Windows

No additional files, specification sheets, guides or documentation found for product.

Warranty: 1 Year Return to Base

Full manufacturers warranty details are available at the manufacturers (Western Digital) web site.

Unless otherwise specified Techbuy is normally your first point of contact for warranty related returns, further information regarding our warranty policies and consumer guarantees is available on our policies and service & support pages.

To apply for return of a product just go to our returns page.

These terms are in addition to and do not affect any terms, conditions, guarantees and warranties implied by law.

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