Western Digital Green 4TB internal hard drive Variable 64 MB 3.5" Serial ATA III

Cool and quiet.

WD GreenPower Technology yields lower operating temperatures for increased reliability and low acoustics perfect for ultra-quiet PCs and external drives.

Reduced power consumption.

Best-in-class power management technology delivers significant power savings and solid performance.

Eco-conscious.

WD Green drives are innovatively designed and manufactured with lead-free, conflict-free and halogen-free materials to help ensure a sustainable future.

WD’s commitment to sustainability.

WD's green initiative goes even further beyond the product level, focusing on recycling and improving the cleanliness of the air, water and land.

Leading the way to green hard drives.

WD led the industry in creating a new category of hard drives that use less power and helps to reduce the world's energy demands one computer user at a time. With over 100 million WD Green drives sold* customers using WD Green drives have saved the planet over 466 million kwh of power – nearly equaling the annual power production of a single coal power plant!

Halogen free.

In addition to being RoHS compliant, all WD Green drives are lead and halogen free, resulting in less pollutants getting into our environment.

Reduced rare earths dependency.

WD’s next-generation WD Green hard drives are built using less rare earth minerals.

Conflict-free materials.

As a leader in hard drive manufacturing, WD proudly guarantees our hard drives are built with 100% conflict-free raw materials.

IntelliSeek.

Calculates optimum seek speeds to lower power consumption, noise and vibration.

NoTouch Ramp Load technology.

The recording head never touches the disk media ensuring significantly less wear to the recording head and media as well as better drive protection in transit.

Upgrading your drive is easy.

WD Acronis True Image, available as a free download on the WD Support website, enables you to copy all your data to a new drive so you don't have to reinstall your operating system to get all the benefits of a new drive.