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Western Digital 2 TB Caviar Green SATA Intellipower 64 MB Cache Bulk/OEM Desktop Hard Drive WD20EARS
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Western Digital 2 TB Caviar Green SATA Intellipower 64 MB Cache Bulk/OEM Desktop Hard Drive WD20EARS

by Western Digital
3.9 out of 5 stars  See all reviews (63 customer reviews)

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Ships from and sold by Amazon.com. Gift-wrap available.
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Frequently Bought Together

Customers buy this item with D-Link DNS-323 2-Bay Network Attached Storage Enclosure $154.99

Western Digital 2 TB Caviar Green SATA Intellipower 64 MB Cache Bulk/OEM Desktop Hard Drive WD20EARS + D-Link DNS-323 2-Bay Network Attached Storage Enclosure
Price For Both: $264.98

These items are shipped from and sold by different sellers. Show details

What Do Customers Ultimately Buy After Viewing This Item?

Technical Details

  • WD Caviar Green hard drives reduce power consumption by up to 40%
  • A fine-tuned balance of spin speed, transfer rate and caching algorithms designed to deliver both significant power savings
  • IntelliSeek - Calculates optimum seek speeds to lower power consumption, noise, and vibration.
  • 2TB capacity holds up to 400,000 digital photos, 500,000 MP3 files, and 240 hours of HD video.
  • 3 year limited warranty.
  See more technical details

Product Details

  • Product Dimensions: 5.8 x 4 x 1 inches ; 1.6 pounds
  • Shipping Weight: 2 pounds (View shipping rates and policies)
  • Shipping: Currently, item can be shipped only within the U.S.
  • ASIN: B002ZCXK0I
  • Item model number: WD20EARS
  • Average Customer Review: 3.9 out of 5 stars  See all reviews (63 customer reviews)
  • Amazon Bestsellers Rank
    #1 in  Electronics > Computers & Accessories > Internal Desktop Components > Hard Drives
  • Date first available at Amazon.com: September 14, 2004

Product Description

Product Description

WD Advanced Format technology increases media format efficiency, thus enabling larger drive capacities. WD Advanced Format drives are specifically optimized for Mac and the latest Windows operating systems such as Windows Vista and Windows 7. WD Advanced Format drives work with legacy operating systems such as Windows XP but require the use of the free WD Align software available on www.wdc.com/advformat. Available in capacities up to 2 TB, 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.

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Customer Reviews

Average Customer Rating
3.9 out of 5 stars (63 customer reviews)
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Most Helpful Customer Reviews

129 of 156 people found the following review helpful:
2.0 out of 5 stars Not worth the trouble; Returned my drives., June 2, 2010
Amazon Verified Purchase(What's this?)
This review is from: Western Digital 2 TB Caviar Green SATA Intellipower 64 MB Cache Bulk/OEM Desktop Hard Drive WD20EARS (Electronics)
I'm a software engineer and I have enormous archives of data. I currently have more than fifty drives on the shelf behind me, totaling about 20 terabytes of data.

For the last two years, I've used almost exclusively the Western Digital Green drives. Perhaps a half dozen each of the 750gb, 1tb, 1.5tb drives. They've been fantastic for data storage.

When the 2tb version reached the right price point, I ordered a couple of those. I was aware of the issues with sector size, detection, and formatting in Windows, but I use Solaris, Linux, and OSX almost exclusively. These drives were being used in OSX, which does have support for these drives.

However, when I plugged both drives in, I had a hell of a time formatting them through the Disk Utility and had to do it manually on the command line.

The real problems began after the drives were formatted and I had moved a ton of data to them. On one of the drives, I renamed a folder which contained about 1.25tb of data. Instantly, the folder disappeared and the drive appeared empty. That's right. I renamed the folder all my data was in and that magically deleted all my content.

Upon closer inspection, the data was still there - it just didn't appear in the file system. Thankfully, I was able to recover the data with some command-line-fu. I then reformatted the drive and gave it a torture test until the time I had to get these back in the box to return to Amazon before the refund period expired. I found boh of the drives to be questionable, but the one drive above to be particularly bad. It could have been just a bad drive or it could be a consistent problem across all of the 2tb WD Greens. My test sample (two drives) isn't adequate to extrapolate.

I will say that the experience was enough to drive me away from the 2tb version. I've instead gone back to buying the 1.5tb WD Greens and replaced both 2tb drives with three of those.

I don't believe the EARS vs EADS version has anything to do with it as I've been using the 1.5tb versions for a long time now and that includes both EARS and EADS drives. They have been stable and I have never had any issues with them.

I've had good experiences until recently with Western Digital's drives, but I'm too gun-shy from the latest experience to try their 2tb drives again any time soon. Back to the trusty 1.5tbs.

Update: I wrote this review the first week of June and as of the second week of August, I have been running a few 2tb WD EARS drives exclusively in a pair of Drobos (as I mention in further replies to this review, the company behind Drobo sell exclusively WD green drives to meet thermal and power needs for their devices). I've had four 2tb WD EARS running in a single Drobo for more than a month now without any of the problems that I experienced on the other 2TB WD EARS that I used. I'm not sure if this is due to how the Drobo interfaces with and utilizes the drives (and compensates for the slow response times, perhaps?) or if there has been some improvement in newer productions of the drive, or if some of us just had a bad batch (the newest drives were purchased from another leading online tech retailer. Think chicken reproduction...).

At any rate, I am not sure I'll trust these drives directly in a system or as attached storage other than part of a dedicated Drobo-type system. They may be fine for that use (as I've said before, I can only comment on my personal experiences and observed experiences of other people with this drive), but I'm not willing to risk it since we're talking about large amounts of data.

My continued advice based on my latest experiences are that you should still consider these drives, but ONLY if you are aware of and willing ot accept the possibility that you may have to deal with returning/exchanging/replacing your drives. As always, Amazon treats customers very well when they have problems with products -- so as long as you can take the time and effort to do that if you encounter severe drive issues with these, then perhaps the nice price on these will be worth it.

21 of 23 people found the following review helpful:
5.0 out of 5 stars Buy this drive, May 17, 2010
Amazon Verified Purchase(What's this?)
This review is from: Western Digital 2 TB Caviar Green SATA Intellipower 64 MB Cache Bulk/OEM Desktop Hard Drive WD20EARS (Electronics)
I've bought six of these. They are quiet. After many hours, they are barely warm to the touch. Every other hard-disk drive made can be used as a space heater.

They are a bit slower, adding about 33% to the seek time, but nothing noticeable to data reads. This only matters when reading lots of small files like during boot-up. I use an Intel SSD for my main drive and one of these for data. It is the best of both worlds.

I've found that most computers recognize these drives but must be told to mount them, format them, and assign them a drive letter. (This only needs to be done once.) This is a problem with large drives, not with these specifically. For true ease of setup, get a 1TB drive.

18 of 20 people found the following review helpful:
5.0 out of 5 stars My 4th Caviar Green HDD, April 28, 2010
Amazon Verified Purchase(What's this?)
This review is from: Western Digital 2 TB Caviar Green SATA Intellipower 64 MB Cache Bulk/OEM Desktop Hard Drive WD20EARS (Electronics)
I bought this drive for the 4th bay on my Data Robotics Drobo 4-Bay USB 2.0/FireWire 800 SATA Storage Array DR04DD10 which is attached to a 24" iMac. I have the other three bays filled with Western Digital 1 TB Caviar Green SATA Intellipower 32 MB Cache Bulk/OEM Desktop Hard Drive WD10EADS and have had them about a year and they've worked perfectly. They run very cool and quiet (you have to put your ear right against Drobo to hear them) resulting in Drobo's fan hardly ever having to kick on. The fan on Drobo is louder than the drives.

Note to Drobo Owners: You will need to update your firmware for Drobo to version 1.3.6 if you haven't already. The new update supports the new 4kb sectors (advanced format). And you must update Drobo dashboard FIRST to version 1.6.8 before updating the firmware.

I am a photographer shooting with and Canon EOS 5D Mark II which creates giant files right out of the camera (20-25MB each), so the space is nice. Since I am using it primarily for storage, speed isn't a big concern. People who really need speed should check out Western Digital 2 TB Caviar Black SATA 7200 RPM 64 MB Cache Bulk/OEM Desktop Hard Drive WD2001FASS but it comes at a much higher price point.

The packaging was excellent. A large outer box, and inside was a smaller box surrounded by air pillows. Opening the smaller box you find the drive suspended by two feet cushions. All 4 of the drives I've ordered from Amazon have come this way and I really appreciate it Maybe I'm just lucky. It's too early to tell how long the drive will last. Having a 3 year warranty from Western Digital help with peace of mind. Once it's time to expand Drobo again, I'll will be buying another Caviar Green but by then we'll be up to 4TB drives.

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Most Recent Customer Reviews

2.0 out of 5 stars Format and check drive before using
It is quickly obvious from the reviews that this drive is not without significant problems for some users in some situations.
Published 9 hours ago by M. Miller

4.0 out of 5 stars So far so good
I was running of space on my Windows Home Server and after some reviewing I bought this hard drive.So far in my server I have used 4 500GB and two 1TB Western Digital green...
Published 1 day ago by Mr. Blue

1.0 out of 5 stars It is windows-only hardware
If you plan to use this on a Mac, Unix/Linux or a NAS, forget it. WD does not support non-windows platforms.
Published 3 days ago by DKO

5.0 out of 5 stars 2TB advanced drive
Advanced format mainly means that it will write to 4k sectors, while the default has usually been 512byte sectors.
Published 4 days ago by G. Park

3.0 out of 5 stars Not Plug n Play
This little drive packs a big wallop... once it's been initialized. Oddly enough, my drive arrived uninitialized, so I needed to download WD's acronis true image program to format...
Published 7 days ago by Philip Muljana

3.0 out of 5 stars 4 months later still waiting for rebate
I ordered this drive with a $15 rebate. It was easy to install into my MacPro desktop as a 4th hard drive. I am booting from it although I could boot from any of my hard drives.
Published 12 days ago by Missapple

1.0 out of 5 stars Bad sectors
i love WD drives, but i am not pleased with this one or series, i guess i got a bad one, 1 week of usage and suddenly the drive drops to RAW format, i was able to get my data back...
Published 13 days ago by M. Bartlett

4.0 out of 5 stars Good for archival perposes.
The capacity of this drive for their price is very good in my opinion, just don't expect to get a competitive edge in terms gameing off of these drives since the speed of these...
Published 16 days ago by Nusakan

5.0 out of 5 stars Great Drive
This is my 4th drive of this type the other 3 have run 24/7 with zero problems. They are installed in my Drobo net server which serves all pc's in my home in one central location...
Published 18 days ago by C. Stewts

5.0 out of 5 stars Not a bad product for the price paid.
It's been a very good drive at the price that I paid. It was a easy install and the only thing you need to do is go into the admin tools and disk storage tool and finish setting...
Published 23 days ago by Martin P. Pedigo

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Discussion Replies Latest Post
Good enclosure for 2TB drive? 3 5 days ago
Beautiful price; Ugly quantity limit 4 5 days ago
Differences Between Western Digital WD10EADS and WD10EARS 1TB Hard Drives.? 5 28 days ago
2007 Macbook? 0 1 month ago
Item under review 1 1 month ago
Ps3 4 June 2010
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