Western Digital My Book external hard drive 4 TB Black

Trusted and loved high-capacity storage. Reimagined design.

Compact outside. Powerful inside. Store massive amounts of photos, videos, music and documents with My Book desktop storage.

Complete Backup

Equipped with WD Backup software for Windows and Apple Time Machine compatibility for Mac, the My Book desktop hard drive can back up your photos, videos, music and documents. The My Book desktop hard drive also works great with Acronis® True Image™ WD Edition software to schedule full system backups.

Password Protection

With built-in 256-bit AES Hardware Encryption with WD Security software, just set your own personalized password to help keep your content private and safe.

WD Reliability

Millions of people around the world trust their data to My Book desktop storage. Designed to meet WD’s demanding requirements for durability, shock tolerance and long-term reliability, we back up (pun intended!) the trusted My Book desktop storage with a 3-year limited warranty.

Watch the Power of My Book Come to Life

We live hectic lives and generate tons of digital content. My Book desktop storage has massive storage capacity so you can confidently back up the files that make up your digital life.

Reimagined Design

Surprisingly compact, the design of My Book desktop storage exudes a confidence reflective of its reliability. With up to 8TB of storage capacity, you can trust My Book to be the home of your digital life.

Easy to Use

Ready to use out of the box, start transferring files, saving memories and backing up right away. WD Backup and WD Security software are included to help protect your data. My Book desktop storage is also compatible with Apple Time Machine.

Technical Specifications

Formatted exFAT for out-of-the-box compatibility with Windows and Mac. Operating System: Windows® 10, Windows 8, Windows 7, Mac OS X El Capitan, Yosemite or Mavericks. May require reformatting for other operating systems. Compatibility may vary depending on user’s hardware configuration and operating system.