WD MyBook Essential 4TB 3.5 Inch USB 3.0 External HDD

Massive capacity

With up to 8 TB of capacity, you'll have all the room to keep your favorite photos, videos, music and important files.

Automatic backup software

WD Backup works quietly in the background to help protect your data with minimal resources from your PC. Set your own schedule to back up updated files or new folders automatically. You can even save your files to the cloud with Dropbox™.*

*Dropbox™ account required for cloud back up. Cloud services may be changed, interrupted, or terminated at any time. Policies may vary by country and individual cloud service. 

System-level backup

Acronis True Image WD Edition backs up your files on a system level, so a copy of your entire operating system, applications, settings and files are always close at hand.

Password protection for encrypted privacy

By creating a password of your own, you get immediate peace of mind knowing your data is safe from unauthorized access. It's equipped with with 256bit AES hardware encryption operates at the speed of the drive—saving you time. 

Universal connectivity

My Book is equipped with USB 3.0 connectivity, providing ultra-fast file transfers and improved power management. My Book is also backwards compatible with USB 2.0 devices.

WD quality inside and out

We understand the importance of your data. For years, millions of people worldwide have trusted their data to WD hard drives, and our first concern is keeping that data safe.

Specifications

Serial Transfer Rate Serial Bus Transfer Rate (USB 3.0)	5 Gb/s (Max)
Capacity	4 TB
Metric Height	170.60 mm
Metric Depth	139.30 mm
Metric Width	49.0 mm
Metric Weight	1.03 kg
Temperature (Metric) Operating	5° C to 35° C
Temperature (Metric) Non-operating	-20° C to 65° C
Power Dissipation AC Input Voltage	100-240 VAC
Power Dissipation AC Input Frequency	47-63 Hz