Internal Hard Disks

WD WD40EZRX 4TB SATA 6.0Gb/s 3.5" Form Factor Desktop Internal Hard Disk

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  • IntelliPower 64MB Cache
  • SATA 6.0Gb/s
  • 4TB
  • Cool and quiet
  • Innovative design
  • View more

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Cool, quiet operation with massive capacity

Large capacity offerings of up to 6 TBs help expand capabilities and application usage of WD Green hard drives including primary installations in desktop PCs, as secondary storage in external cases or as reliable backup storage.

Quiet, precise and reliable

Quiet acoustics, reduced vibration and advanced 4K HDD formatting makes WD Green a stronger solution when compared to the competition and perfect for PCs and external drive applications.

Power management with performance

Best-in-class power management, reduced heat output, and next-generation technologies such as IntelliSeek offer a perfect balance of performance and power.

Enhance your PC experience

Load all of your multimedia files on a WD Green HDD while loading your operating system on an SSD to give you both massive capacity and an added boost of speed.

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  • IntelliPower 64MB Cache
  • SATA 6.0Gb/s
  • 4TB
  • Cool and quiet
  • Innovative design

Technical Specifications

Brand WD
Series Green
Model WD40EZRX
Packaging Bare Drive
Interface SATA 6.0Gb/s
Capacity 4TB
RPM IntelliPower
Cache 64MB
Features 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.

Innovative design
-WD Green drives are innovatively designed and manufactured with lead-free, conflict-free and halogen-free materials.

-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.
Form Factor 3.5"


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