External Hard Drives

My Book Studio

My Book Studio
  • Highlights
  • Features
  • Specifications
  • Accessories
  • Support

Ultra-fast USB 3.0 performance.
With the blazing-fast connectivity of SuperSpeed USB 3.0, this drive lets you access and save files in record time. Reduce transfer time by up to 3 times when compared to USB 2.0 transfer rates.*

*Performance may vary based on user’s hardware and system configuration.

All metal. Mac-ready.
The premium aluminum enclosure complements your Mac and remains cool to the touch. It's formatted to work with your Mac right out of the box and is ideal for demanding graphics professionals.

Password protection secures your drive.
Use WD Security to set password protection and hardware encryption and protect your files from unauthorized use or access.

Massive capacity

Featuring up to 4 TB capacity, My Book Studio offers enough room to safely store all the chapters of your creative life.

Dual USB 3.0 and USB 2.0 interface

This single drive delivers universal compatibility today and speed for tomorrow. Use it with high speed USB 2.0 now and step up to SuperSpeed USB 3.0 speed when you're ready.

Heat-dissipating, aluminum enclosure

The durable, anodized aluminum enclosure is the perfect complement for your MacBook Air.

Formatted HFS+ Journaled.

Works out of the box with your Mac OS X 10.5 or later operating system. It can also be reformatted to work with Windows operating systems.

WD Drive Utilities

Register your drive, set drive timer, run diagnostics and more using WD Drive Utilities.

WD Security

Gain peace of mind knowing that your data is protected from unauthorized access or theft with password protection and hardware encryption.

Compatible with Apple® Time Machine®

Compatibility with Apple Time Machine makes it quick and easy to back up your files.

Model #InterfaceCapacityOperating System 
WDBHML0040HALUSB 3.0 and USB 2.04 TBMac/Windows
WDBHML0030HALUSB 3.0 and USB 2.03 TBMac/Windows
WDBHML0020HALUSB 3.0 and USB 2.02 TBMac/Windows


  • Mac OS X 10.6.8 or higher
  • Windows XP, Windows Vista, Windows 7 or Windows 8
    (requires reformatting)

Package Includes

  • External hard drive
  • USB cable
  • AC adapter
  • Quick Install Guide

Mouse over each icon to see how it was calculated.

Examples of the number of photos, songs, videos and any other files that can be stored on a hard drive are provided for illustrative purposes only. Your results will vary based on file size and format, settings, features, software and other factors.

As used for storage capacity, one megabyte (MB) = one million bytes, one gigabyte (GB) = one billion bytes, and one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment. As used for buffer or cache, one megabyte (MB) = 1,048,576 bytes. As used for transfer rate or interface, megabyte per second (MB/s) = one million bytes per second, megabit per second (Mb/s) = one million bits per second, and gigabit per second (Gb/s) = one billion bits per second.

My Book USB 2.0 Cable
(Type A to Mini Type B)

18W Power Adapter for
My Book and My DVR
Price: US$14.99  In Stock

My Book Side Opening Case
Price: US$14.99  In Stock

My Book 3-in-1 Carrying Case