Key Specs
- Storage Drive Type: HDD (Traditional, mechanical hard disk drives are the most common type of storage because they're relatively inexpensive and offer huge capacities. However, they also generate both noise and heat. Solid state drives, also known as SSDs, are many times faster than hard disk drives and have no moving parts to wear out, but typically offer less capacity for the same price.)
General
- Product Name: My Book Duo 4TB 2-Bay External USB Type-C Storage
- Brand: WD
- Model Number: WDBFBE0040JBK-NESN
Performance
- Storage Drive Type: HDD (Traditional, mechanical hard disk drives are the most common type of storage because they're relatively inexpensive and offer huge capacities. However, they also generate both noise and heat. Solid state drives, also known as SSDs, are many times faster than hard disk drives and have no moving parts to wear out, but typically offer less capacity for the same price.)
Compatibility
- Internal Or External: External
- External Hard Drive Type: Desktop (Physical characteristics of the hard drive, including size, weight and how you connect to your device.)
- Minimum System Requirements: Windows 10, Windows 8.1/8.0 or Windows 7, macOS Sierra (10.12), El Capitan (10.11), Yosemite (10.10), or Mavericks (10.9) operating systems (reformatting required)
Features
- Security Features: Software
- Data Encryption: true
- Encryption Algorithm: 256-bit AES (The algorithm standard used to encrypt data on a device.)
Power
- Power Source: AC adapter
Dimensions
- Product Height: 7.09 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
- Product Width: 3.94 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
- Product Weight: 80.8 ounces (The out of box weight of the item.)
Included
- Included Software: WD Discovery, WD Backup, WD Drive Utilities, and WD Security
Other
- UPC: 718037856520

Backup videos, photos, documents and music with this Western Digital My Book Duo drive. Its large 4TB capacity frees up valuable space on your computer, and it has two USB 3.0 ports for connecting additional accessories. This Western Digital My Book Duo drive has 256-bit encryption to keep private files secure.

4TB storage capacity: Provides plenty of storage space for storing documents, photos, music and more.
USB Type-C 3.1 Gen 1 interface, USB 3.0 Compatibility: Compatible with USB 3.1 Gen 1 and USB 3.0, the My Book Duo drive works to deliver high-speed connectivity no matter the interface.
Data transfer rates up to 360 MBps with USB Type-C: Enable a rapid response when updating files.
Automatic backup: WD Backup™ software works quietly in the background to help preserve your data using minimal PC resources. Select an automatic, continuous or scheduled backup option to instantly back up your files.
WD Drive Utilities™: Allows you to configure, manage, and diagnose your drive.
256-bit AES Hardware Encryption and Password Protection: The My Book™ Duo drive comes with 256-bit AES Hardware Encryption with WD Security™ software built in to help keep your private content secure.
USB 3.0 Hub Ports: The My Book™ Duo drive can serve as a quasi-docking station with two USB 3.0 Type-A hub ports for accessories, including additional storage, keyboard and mouse, card readers, USBs, or phone sync and charge.
Compatible with PC and Mac: Offers flexible installation options.*
Free 500GB WD 2Go cloud storage and FILERECOVERY software. Only at Best Buy.: One-year cloud storage and FILERECOVERY license with included WD Discovery software.
4TB storage capacity: Provides plenty of storage space for storing documents, photos, music and more.
USB Type-C 3.1 Gen 1 interface, USB 3.0 Compatibility: Compatible with USB 3.1 Gen 1 and USB 3.0, the My Book Duo drive works to deliver high-speed connectivity no matter the interface.
Data transfer rates up to 360 MBps with USB Type-C: Enable a rapid response when updating files.
Automatic backup: WD Backup™ software works quietly in the background to help preserve your data using minimal PC resources. Select an automatic, continuous or scheduled backup option to instantly back up your files.
WD Drive Utilities™: Allows you to configure, manage, and diagnose your drive.
256-bit AES Hardware Encryption and Password Protection: The My Book™ Duo drive comes with 256-bit AES Hardware Encryption with WD Security™ software built in to help keep your private content secure.
USB 3.0 Hub Ports: The My Book™ Duo drive can serve as a quasi-docking station with two USB 3.0 Type-A hub ports for accessories, including additional storage, keyboard and mouse, card readers, USBs, or phone sync and charge.
Compatible with PC and Mac: Offers flexible installation options.*
Free 500GB WD 2Go cloud storage and FILERECOVERY software. Only at Best Buy.: One-year cloud storage and FILERECOVERY license with included WD Discovery software.

Whats Included

Desktop RAID Storage
WD Discovery™ software for WD Backup™, WD Security™ and WD Drive Utilities™
USB-C to USB-C cable
USB-C to USB-A cable
AC adapter
Disk replacement tool
Quick install guide
Desktop RAID Storage
WD Discovery™ software for WD Backup™, WD Security™ and WD Drive Utilities™
USB-C to USB-C cable
USB-C to USB-A cable
AC adapter
Disk replacement tool
Quick install guide

Q: Does this run in RAID 1? So it has two 2TB drives running in RAID 1?

A: Hi, Please refer to the link given below in order to know the features of the My Book Duo. http://products.wdc.com/library/UM/ENG/4779-705166.pdf Need Help? Please see our "'Contact Us" page for information.

Q: Are hard drives included with this Red drives?

A: No, this product is not included with this Red drives.