WD WD40EFRX 4TB Red 3.5" IntelliPower SATA3 NAS Hard Drive

FILL YOUR NAS WITH RED.

THEN FILL IT WITH AWESOME.

With drives up to 8TB, the WD Red drive is built for single-bay to 8-bay NAS systems and packs the capacity to store your precious data in one powerhouse unit.

Cooler Temperatures

By reducing power consumption, the operating temperature of your NAS stays cool.

With a lower temperature in your system, you can create a more reliable solution for your NAS.

Built for NAS Compatibility

WD Red drives with NASware technology are purpose-built to balance performance and reliability in NAS and RAID environments.

Desktop Drive vs. WD Red Drive

A desktop hard drive is not typically tested and designed for NAS environments.

WD Red has features such as NAS compatibility, increased reliability and more.

WD RED. BUILT FOR NAS.

Equip your NAS with WD Red hard drives and enjoy streaming your media, backing up your PCs, sharing your files, and managing your digital content quickly and easily.

WD RED FOR HOME

Stream, backup, organize and effortlessly share your digital content to your TV, PC and more.

NASware technology increases your drives' compatibility with your NAS system, for better playback with your devices.

WD RED FOR SMALL BUSINESS

Businesses thrive on productivity and efficiency, two guiding principles built into the design of the WD Red drive.

Share and backup files at the speed of your business with a WD Red drive in your NAS.

WD RED FOR BIG BUSINESS

Looking for maximum performance in a heavy use NAS?

The WD Red Pro drive is designed to handle an increase in workload and system demand and features a 5-year limited warranty.

3D Active Balance Plus

Helps to ensure your data is protected from excessive vibration and noise in a NAS or RAID environment.

This dual-plane balance control maintains your drive’s performance over time.

Premium Support and a 3-year Limited Warranty

Confidently upgrade to the best in NAS drive performance with the assurance of a 3-year limited warranty and world-class support services included with every WD Red drive.