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Western Digital Caviar Green 2 TB SATA II 32 MB Cache Bulk/OEM Internal Desktop Hard Drive - WD20EADS

3.9 out of 5 stars 35 customer reviews

List Price: $117.99
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  • 2 TB capacity; 32 MB Cache
  • SATA II Connectivity
  • Reduced power consumption
  • Ships in Certified Frustration-Free Packaging
8 new from $79.00 6 used from $48.90 2 refurbished from $114.19
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Technical Details

  • Brand Name: Western Digital
  • Model Number: WD20EADS
  • Hard Disk Size: 2000 GB
  • Manufacturer Warranty Description: 3 year limited warranty
  • Buffer Size: 32 MB
See more technical details

Product Description

Product Description

Available in capacities up to 2 TB, WD Caviar Green SATA hard drives reduce power consumption by up to 40 percentage 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 Caviar Green Hard Drives – Cool and quiet.

The WD Caviar Green desktop SATA hard drives give you the space you need to hold enormous amounts of software, photos and videos. These drives make it possible to build high capacity, cool and quiet systems, while delivering the right balance of system performance and energy conservation.

Why you should choose WD Caviar Green:

WD Caviar Green hard drives provide high capacity storage while using up to 40% less power than traditional 7200 RPM drives. In addition, these hard drives are quieter and cooler than traditional 7200 RPM drives.

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.
WD's IntelliPower technology delivers both significant power savings and solid performance. Additionally, WD Caviar Green drives consume less current during startup allowing lower peak loads on systems as they are booted.
Reduced power consumption
Massive capacity.
Store up to 2 TB of photos, videos, music and files on a single drive.
Massive capacity
Features at a glance

  • 2 TB of desktop storage
  • Reduced power consumption
  • SATA 3 Gb/s interface
  • WD GreenPower Technology
  • 2-year limited warranty
WD caviar Green
Ideal for:
  • Adding lots of storage in desktop PCs or external drives and NAS devices
  • Adding extra storage space for photos, videos and music
  • Environmentally-conscious individuals seeking reduced power consumption

SATA 3 Gb/s interface - The industry standard and most common interface.

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.

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

Desktop / Consumer RAID environments - WD Caviar Green Hard Drives are tested and recommended for use in consumer-type RAID applications. (RAID-0 / RAID-1)*

*Business Critical RAID Environments – WD Caviar Green Hard Drives are not recommended for and are not warranted for use in RAID environments utilizing Enterprise HBAs and/or expanders and in multi-bay chassis, as they are not designed for, nor tested in, these specific types of RAID applications. For all Business Critical RAID applications, please consider WD's Enterprise Hard Drives that are specifically designed with RAID-specific, time-limited error recovery (TLER), are tested extensively in 24x7 RAID applications, and include features like enhanced RAFF technology and thermal extended burn-in testing.

Leading the way to green hard drives - WD led the industry in creating a new category of hard drives that use less power and help reduce the world's energy demands one computer user at a time. These drives consume significantly less power than standard drives spinning at 7200 RPM. All WD Caviar Green drives are lead and halogen free, resulting in less pollutants getting into our environment. Beyond the product level, WD's green initiative goes even further focusing on recycling and improving the cleanliness of the air, water and land in the locations surrounding WD facilities.

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. Note: Bare drive does not include any cables or mounting hardware.

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.

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, non-descript, easy-open package.

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

You might also consider:

3.5-inch Internal
Comparison Chart
WD Caviar Blue WD Caviar Green WD Caviar Black WD VelociRaptor
Value and reliability
for every day computing.
Cool, quiet.
Maximum performance
for power computing.
The fastest SATA hard drive
on the planet.
Ideal for
Family and business computing.
Desktop PCs, external drives and NAS devices.
Photo and video editing, and
maxed out gaming systems.
Performance enthusiast
systems and workstations.
Capacity range
80 GB – 1 TB
320 GB – 3 TB
500 GB – 2 TB
150 GB – 600 GB
SATA 6 Gb/s
SATA 3 Gb/s
PATA 100 MB/s
SATA 6 Gb/s
SATA 3 Gb/s
SATA 6 Gb/s
SATA 3 Gb/s
SATA 6 Gb/s
Form Factor
8 MB – 32 MB
16 MB – 64 MB
32 MB – 64 MB
32 MB
Limited Warranty
Highest capacity
Highest performance
Photo Video editing

Product Information

Product Dimensions 5.8 x 4 x 1 inches
Item Weight 9.6 ounces
Shipping Weight 1.8 pounds (View shipping rates and policies)
Item model number WD20EADS
Customer Reviews
3.9 out of 5 stars 35 customer reviews

3.9 out of 5 stars
Best Sellers Rank #806 in Electronics > Computers & Accessories > Data Storage > Internal Hard Drives
Date first available at Amazon.com April 2, 2004

Warranty & Support

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


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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

By Peter W. Kwok on May 4, 2009
I was forced to get a second drive when the disk on my 1 year old PC is 90% full. Shooting 15M pixel digital photos in RAW format takes up lots of disk space. I need a single large drive to hold all photos for the next few years.
This is the consumer version that includes a SATA cable. The OEM version Western Digital Caviar Green 2 TB Bulk/OEM Hard Drive 3.5 Inch, 32 MB Cache, 7200 RPM SATA II WD20EADS is only a bare drive. Unless you need handholding, the OEM version may be a better buy. The only reason I got this one was that it was on sale at Best Buy for the still expensive early adaptor price of $[...]. Unless you have an immediate need, wait a few month for the price to drop.
The drive mounts easily with the included screws. Due to the non-standard sideway disk cage of my Gateway PC, I have to cut off the useless stub on the cable in order to close the cover. Although my Vista PC refused to install the software from the included CD, Vista's tool works just as well. Formatting such a huge drive is an overnight operation. Copying files from the old drive takes another few hours. After nearly 2 months of use, the disk worked flawlessly and quietly. It is fast enough as a second data only drive. As for the claim of low power, I have no way of measuring it.
As I wrote earlier, the consumer version includes the SATA cable with the funny stub, 4 screws, a software CD that cannot be installed on Vista, and some instructions that you can download from Western Digital. Whether you should spend the extra dollars over the OEM version is up to you.
This drive deserves a 5-star rating, except for its high initial price.
Read more ›
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Verified Purchase
Bad Drive(s) WORSE Customer Service, Useless Warranty

In the last few years, I have had 12 Western DIgital Green Drives fail. Until recently they have been replacing them under warranty (up until the 3 year mark), but now are refusing to replace them, claiming since they were "GASP" installed into a computer the warranty is null and void!

Yo, Western Digital, does installing gasoline in a gas tank also void the warranty on the gas as well as the vehicle?

If you have been following the tech news, the WD Green drives are probably the worst quality and highest failure rate of all drives, and the "Green" aspect is supposedly a lower power consumption, (which really boils down to lower performance) and unfortunately, a lower quality that leads to a shorter lifespan.

What good is a "Green" drive when you have to put 2 or 3 into a landfill during the less than 3 year lifespan of what should have been one hard drive's lifespan?

This is neither "Green" nor helpful.

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Verified Purchase
Due to their low cost and availability, I've purchased numerous Western Digital Caviar drives over the past 15 years or so. They have always left a bad taste in my mouth. Some have died just outside the 1yr warranty period. Two of them were put into a Raid0 configuration, one drive hiccuped, and I lost the entire array and all data on the drives. I then put them into a Raid1 (redundant) and they eventually became disconnected with 2 different drive letters, while still redundantly updating. Weird. Could probably blame the Raid controller on my brand new motherboard, as the drives have been fine since. Though I have not run them in RAID since then.

So I wanted 4 drives to put into my DNS-343 4-bay NAS. I wanted to max it out, and the only 2TB drive DLINK recommended was the WD20EADS drive. With no other choice, I gritted my teeth and ordered 4 of them. Before subjecting them to the 20+ hr RAID 5 setup process in the NAS, I hooked them up to my desktop and ran the LifeGuard software Extended Test on each of them. 3 passed, 1 failed. Selected the "Fix sector" option, but it failed AND generated a nice windows hard-drive failure box. Then tried using LifeGuard to write zeroes to the failed drive, but after a few minutes it too failed.

So now I'm going through the RMA process to send back the bad drive to goharddrive.com, at my expense. Yea.

Thanks, Western Digital, for burning me yet again. And no, I don't feel a 75% success rate is acceptable.
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Verified Purchase
I bought 5 of these for my server and they have been running pretty much non-stop since march 2011. I had no problems until early May 2011 when one of the hard drives failed. I contacted the seller and they sent me an RMA with a pre-paid postage to send it back. Once I shipped the hard drive back I got a new one in a matter of days! The hard drives are all good so far and the customer service was great. I highly recommend this seller and this product.
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Verified Purchase
When I bought a home server, I wanted to add an additional 2TB hard drive to match the existing hard drive in the machine. After searching I found a compatible drive with the same characteristics. It turned out to be exactly what I was looking for. I've pretty much always used WD hard drives and have had no difficulties with them. Why change now?

The product arrived quicker than I expected, and I am happy with the results.
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