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WD Green 2 TB Desktop Hard Drive: 3.5 Inch, SATA III, 64 MB Cache (WD20EARX) (Old Model)

4.2 out of 5 stars 525 customer reviews
| 9 answered questions

Price: $128.07 & FREE Shipping
Only 3 left in stock.
Ships from and sold by DatabugLLC in easy-to-open packaging.
2 TB
  • IntelliSeek - Calculates optimum seek speeds to lower power consumption, noise, and vibration.
  • And caching algorithms designed to deliver both significant power savings and solid performance.
  • And offer best-in-class acoustics and operating temperature and 3rd generation SATA interface.
  • WD Caviar Green hard drives reduce power consumption by up to 40%.
  • IntelliPower - A fine-tuned balance of spin speed, transfer rate.
2 new from $128.07 3 used from $49.00 2 refurbished from $90.00
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Frequently Bought Together

  • WD Green 2 TB Desktop Hard Drive: 3.5 Inch, SATA III, 64 MB Cache (WD20EARX) (Old Model)
  • +
  • Asus 24x DVD-RW Serial-ATA Internal OEM Optical Drive DRW-24B1ST (Black)
Total price: $149.82
Buy the selected items together

Technical Details

Size: 2 TB
  • Brand Name: WESA9
  • Model Number: WD20EARX
  • Hard Disk Size: 2 TB
  • Manufacturer Warranty Description: 2
  • Form Factor: 3.5-Inch
See more technical details

Compare to Similar Items

This item: WD Green 2 TB Desktop Hard Drive: 3.5 Inch, SATA III, 64 MB Cache (WD20EARX) (Old Model)
Customer Rating 4 out of 5 stars (525) 4 out of 5 stars (3182) 4 out of 5 stars (6857) 4 out of 5 stars (3473)
Price $128.07 $83.01 $69.99 $89.99
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By DatabugLLC Parts Bonanza Amazon.com Amazon.com
Hard Disk Size 2 TB 2000 GB 2 TB 2 TB
Speed 7200 RPM Information not provided 5400 RPM 5400 RPM
Form Factor 3.5-Inch 3.5 inch Information not provided 3.5 inch
Hardware Interface sata 3 0 gb sata 6 0 gb sata 6 0 gb sata 6 0 gb
Cache Memory Installed 64 64 64 64
Add to Cart Add to Cart Add to Cart Add to Cart

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Product Description

Size: 2 TB

Product Description

Available in capacities up to 3TB, WD Caviar Green SATA hard drives reduce power consumption by up to 40% and offer best-in-class acoustics and operating temperature. Based on WD's exclusive GreenPower technology, these drives are designed to deliver power savings as the primary attribute. As hard drive capacities increase, the power required to run those drives increases as well. WD Caviar Green drives make it possible for energy-conscious customers to build systems with higher capacities and the right balance of system performance, ensured reliability, and energy conservation. They are ideal for PCs, external storage and other devices that require lower power consumption and cool, quiet operation.

From the Manufacturer

WD Green Desktop Hard Drives – Cool, quiet operation for efficient eco-conscious computing.
Cool and quiet.
WD GreenPower Technology yields lower operating temperatures for increased reliability and low acoustics perfect for ultra-quiet PCs and external drives.
Cool and quiet
Reduced power consumption.
Best-in-class power management technology delivers significant power savings and solid performance.
Reduced power consumption
WD Green drives are innovatively designed and manufactured with lead-free, conflict-free and halogen-free materials to help ensure a sustainable future.
WD Green
Product Features

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!
*Data reflects approximate drives sold as of June 2012.

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.

Tested for compatibility - We perform tests on hundreds of systems and a multitude of platforms in our FIT Lab to give our customers confidence that our drives will work in their systems.

The WD advantage - WD puts our products through extensive Functional Integrity Testing (F.I.T.) prior to any product launch. On average, each new product goes through 600,000 hours of testing. WD also has a detailed Knowledge Base with more than 1,000 helpful articles. You can also call toll-free support 7 days per week in the U.S. and Canada. See the WD Support site for full details.

Upgrading your drive is easy - WD Acronis TrueImage, available as a free download on the WD Support site, 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.

WD Certified

WD-certified packaging - All WD drives purchased from Amazon.com are shipped in WD-certified hard drive packaging. It is designed and fully tested to provide WD products with the highest of safety while in transit. With WD-certified packaging, you can rest assured that your WD hard drive will arrive safely, fully protected, in a non-descript, easy-open package.

Works with Windows 7/Vista/XP/2000, Mac and Linux operating systems.

Recommended use - WD Green hard drives are tested and recommended for use in PCs as secondary storage, external enclosures and other applications that require cool and quiet operation.*

*Desktop drives are not recommended for use in RAID environments, please consider using WD Red hard drives for home and small office 1-5 bay NAS systems and WD Enterprise hard drives for rackmount and >5 bay NAS systems.

Ideal for:
  • Adding lots of storage in desktop PCs or external drives
  • Adding extra storage space for photos, videos and music
  • Environmentally-conscious individuals seeking reduced power consumption

Features at a glance

  • 500 GB - 3 TB capacity
  • SATA 6 Gb/s interface
  • Reduced power consumption
  • WD GreenPower Technology

WD Green Desktop
You might also consider:

3.5-inch Internal
Comparison Chart

WD Blue

WD Green

WD Black

WD Red

WD VelociRaptor
Solid performance
and reliability for everyday computing.
Cool, quiet operation
for efficient eco-conscious computing.
Maximum performance
for power computing.
The right drive for home
or small office NAS.
High-performance storage for power users.
Ideal for
Family and business computing.
Desktop PCs, secondary storage and external drives.
Photo and video editing, and maxed out gaming systems.
Specifically designed and tested for small office and home office, 1-5 bay NAS systems.
Performance enthusiast systems and workstations.
Capacity range
80 GB – 1 TB
320 GB – 3 TB
500 GB – 2 TB
1 TB – 3 TB
250 GB – 1 TB
SATA 6 Gb/s
PATA 100 MB/s
SATA 6 Gb/s
SATA 6 Gb/s
SATA 6 Gb/s
SATA 6 Gb/s
Form factor
8 MB – 64 MB
64 MB
32 MB – 64 MB
64 MB
64 MB
Highest capacity
Highest performance
Photo/video editing
Network Storage Systems

Product Information

Size:2 TB
Product Dimensions 5.8 x 4 x 1 inches
Item Weight 1.1 pounds
Shipping Weight 1.2 pounds (View shipping rates and policies)
Department Storage Devices
Manufacturer Western Digital
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item is not eligible for international shipping. Learn More
Item model number WD20EARX
National Stock Number 7025-01-607-5559
Customer Reviews
4.2 out of 5 stars 525 customer reviews

4.2 out of 5 stars
Best Sellers Rank #673 in Electronics > Computers & Accessories > Data Storage > Internal Hard Drives
Date first available at Amazon.com April 6, 2011

Warranty & Support

Product Warranty: For warranty information about this product, please click here


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Important Information

Seller Warranty Description
3 Year Databug Warranty.

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Size: 2 TB Verified Purchase

Here's a little background on my WD drive experience, to provide context for the review. For my particular usage and review of this specific product, hop further down.

My previous experience with other WD drives have been anywhere between 100 and 500gb drives, typically the WD Caviar Black or Caviar Blue series which are stout (Black being preferred). To date I still use a 250gb Black model which is almost 10 years old and has been in very harsh conditions, ranging from 0*-130* Fahrenheit sustained ambient temperatures, and has been submitted to multiple shocks and shaking around while in use. Needless to say, it's a proven performer and a very solid platform.

Enter the Green drive era.

The WD Green drives boast lower operating temperatures and of being quieter, which they accomplish by on-the-fly adjustment of the RPM of the spindles, which uses less power and produces less heat or noise in the process. Essentially these perform no faster than 5400rpm (some have suggested 5900), rather than 7200rpm, and they will cycle off or go into a low power state at various times.

Some might wonder why such a large drive with "environmental" features, can be so inexpensive compared to the Blue or Black series drives of the same (or less) size. Basically it boils down to reliability. Do your research on the WD Green drives on a lot of tech sites and you'll find that the first generation units had lots of issues because of their "green" features. For example, my experience below

This is my 4th WD Green drive of large capacity, the previous three being 1TB units and first generation. Two of the previous three are also dead, I might add. These 3 previous drives were purchased back in 2010.
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Size: 2 TB
I have 12 or 13 of these drives, bought when the prices were very low just before the Thai floods. If you buy one of these make sure you download and run the WDIDE3.exe from Western Digital to disable the 8 second default for head parking. The wear and tear this causes on the drive mercilessly shortens the life of the drive. Google it and you will find plenty of stories on this. Surprised no class action suit yet for this bad engineering decision. I suspect someone in marketing got their way over the engineers just to make the drives power consumption look better. At least the engineers were good enough to provide an official tool so those in the know (meaning you now you have read this) can fix a very bad design decision.

All modern OS's spin down the drives and it is better to allow BSD, Ubuntu, Windows or what ever else you are using to power down the drives in line with the OS's requirements rather than let the hardware do it, incessantly in this case. It's more than just a theoretical issue. I lost a ZFS RAID when one of four of these drives failed and system logs showed the redundant data had not been written correctly across the drives and pointed to the head parking issue timing it out. I had NO DATA LOSS as I understand a RAID is not back up, so I always have a set of back ups of all my data, however if you are using these drives in a small RAID NAS box in your home please take heed and always have a back up somewhere and do not rely on your NAS being sufficient. Please be paranoid when you deal with your data.

Anyway, my replacement drive for the above RAID was DOA. Another 4 weeks and I got a working one. Applied WDIDE3 to disable the 8 second shut down and have had no issues since.
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Size: 1 TB
Unlike most of the positive reviews, I have owned a few of these drives for around 2 years now. For most of them, they seemed fine during the first few months. So in my mind any review where the drive is less than 3+ months old is not really valid.
I have not had any of the green drives I own survive more than about a year or a year and half at most. Out of the 7 I now own, I have replaced all of them once. And I think I have to replace a replacement now as well.

If you're willing to risk the data you put on these drive getting corrupted, then you can save a few dollars but so far I have yet to have one of the green drives not die before the warranty expired.
If you think "hey it's under warranty, so no big deal" then you're not thinking it all the way through.
Having to replace a drive means losing files or data as well. It's not like replacing a video card or other component. You lose more than just time when a drive fails.
And there was no advanced warning of a failure on any of the drives. I only found out that a drive was starting to fail when I started seeing problems with files getting corrupted and the OS telling me that I had to do a file system check on the drive.

The replacement drives are not new drives. They are all re-certified drives. Which means they were all sent back as damaged and maybe WD fixed something before shipping it back out.

I originally started out with 4 drives at once to put in to a RAID device. I thought that since it was raid 5, it wouldn't hurt if a drive died. Well what happened was 2 drives started corrupting data at about the same time. Which meant the problem was not recoverable. RAID 5 can survive a single drive failure at a time but not 2.
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