Western Digital
My Book Essential 4TB External Hard Drive (WDBFJK0040HBK)

My Book

Ultra-fast transfer rates

My Book desktop storage is optimized for the best possible data transfer rates. Connect this drive to a SuperSpeed USB 3.0 port to save and access files up to 3x faster than with USB 2.0.

Automatic backup software

WD SmartWare Pro automatic backup software works quietly in the background to help protect your data using minimal PC resources. Select automatic continuous backup to instantly create a second copy of your files. Or select the scheduled backup option to back up your files on your schedule and take control of your backup.

System-level backup

Acronis® True Image WD Edition is an integrated software suite that ensures security of all information on your PC. It can back up the entire disk drive or selected partitions, including your operating system, applications, settings and all of your data. You can also use the software to securely delete any confidential data you no longer need.

Local and cloud backup

WD SmartWare Pro lets you choose. Back up your files to your My Book drive or back up your files to the cloud using your Dropbox™ account.* You can also back up files from your Dropbox account to your My Book drive for extra protection.

Universal connectivity

With this drive you get connectivity with the latest USB 3.0 devices as well as backward compatibility with USB 2.0 devices.

*Dropbox account required for cloud backup. Cloud services may be changed, terminated or interrupted at any time and may vary by country.

WD quality inside and out

We know your data is important to you. So we build the drive inside to our demanding requirements for durability, shock tolerance and long-term reliability. Then, we protect the drive with a durable enclosure designed for beauty.

Secure your files

Use WD Security to set password protection and hardware encryption. Gain peace of mind knowing that your data is protected from unauthorized access.