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Item#: 9SIA8UW3HA9390

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

  • newegg GreenPower Technology With GreenPower technology, the Western Digital Caviar Green WD20EARS yields lower operating temperatures for increased reliability and low acoustics for ultra-quiet PCs and external drives.
  • newegg Reduced Power Consumption Combined with WD's IntelliSeek, NoTouch, and IntelliPower technologies, the Western Digital Caviar Green WD20EARS has reduced power consumption by up to 40 percent compared to standard desktop drives.
  • newegg SATA 3.0 Gb/s Interface The Western Digital Caviar Green WD20EARS features the SATA II interface supporting up to 3.0 Gb/s data transfer rates, Native Command Queuing (NCQ) and hot-pluggable point-to-point connections for optimum performance, efficiency, convenience and flexibility.
  • newegg Perpendicular Magnetic Recording Perpendicular Magnetic recording technology enables industry-leading capacity in existing standard form factors and improves performance by increasing data density while reducing moving parts for enhanced reliability.
  • newegg StableTrac technology The Western Digital Caviar Green WD20EARS features the StableTrac technology to secure the motor shaft at both ends, reducing system-induced vibration and stabilize platters for accurate tracking, during read and write operations.


Learn more about the Western Digital WD20EARS

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years
  • Read full details

Customer Reviews of the Western Digital WD20EARS

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  • Robert H.
  • 2/5/2016 2:38:32 PM
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsAfter 5 years 3 months, one of the two finally failed. I'm not complaining!

Pros: I bought two drives for use in a RAID 1 array. The drives have been running strong 24/7 since November of 2010. Today, one of the two failed. Time to upgrade, but I'm happy with what I got for the money I spent.

Cons: Well, it didn't last forever, so there's that.
Performance wasn't stellar, but performance isn't the purpose of the WD Green series.

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  • Dennis A.
  • 11/13/2015 9:03:01 AM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsGood drive

Pros: Going strong for 4+ years! I use an SSD for my OS and games, and use this drive for photo storage and video streaming. Works great and has been very reliable.

Cons: None!

1 out of 1 people found this review helpful. Did you? Yes No

  • Mark L.
  • 10/10/2015 11:00:50 AM
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsOne Dead/One Dying

Pros: None.

Cons: I bought both of these 4 years ago and put them in a drawer. They both have the exact same part numer but it turns out that one is a 512 sector device and one is a 4096 sector device. They can't be used in a RAID1 configuration as I originally intended (and forgot about for 4 years) and the 4096 device was DOA. Now the 512 device is throwing errors. Bummer...

Other Thoughts: I've used several different hard drive vendors over the years but WD will not get any of my business again. Tech support just re-stated the 2 year warranty which I can understand but even when I told them that they were just opened, they were not helpful.

C'est la vie...

0 out of 5 people found this review helpful. Did you? Yes No

  • Kacia K.
  • 9/17/2015 6:09:25 PM
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsSlowwwwww

Pros: Bought 2, used in RAID1 setup. Lasted 3 years, if anyone considers that good.

Cons: Very slow drives. Shortest lifespan I've had out of any WD drive in the past decade with the exception of a couple that failed very quickly, which is preferable. One of the 2 I bought has failed in my mirror setup. No SMART warnings, no RAID warnings, the mirror just started failing. 2 year warranty? Apparently I overlooked that or gave the benefit of a doubt given my history with WD drives. First Greens I bought, will never buy any again as they clearly have only a 2 year warranty on these for a reason. A big disappointment in terms of speed as well as reliability.

Other Thoughts: One could argue I got life out of this but I'll argue that this life is poor, very poor. On top of that for whatever reason the drive gave no indications of failing via SMART warnings or any alerts on the RAID setup which is highly unusual. Luckily I lost very little since this is in a mirror but it did cause some breakage of the mirror even though the other drive is still okay at this point.

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  • Daniel C.
  • 9/17/2015 2:25:49 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsStill Running Fine

Pros: Medium Capacity at 2TB
WD Product well covered in the event of failure
At 5400 RPM
Long Life Span:

Cons: None

Other Thoughts: At 5400 rpm these HD's do not give less than perfect playback of Video Files (movies) no skipping or stuttering , playback is always smooth and flawless.
I have hundreds of Blu-ray Movies digitized on these drives and I play them daily with excellent results
WD does an excellent job with Warranty issues and replacements, and that is important with Mechanical Disc's

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  • Robert K.
  • 8/19/2015 6:59:18 AM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggs4.5 still going

Pros: Have had this drive for over 4.5 years, has been dependable. Seems to do the job at reasonable pace. No problems with games.
Got my moneys worth.

Cons: none comes to mind. . Although the whole windows score thing was a bummer.

Other Thoughts: I am surprised that this exact item has not been discontinued for later versions. I figured that if i am going to push new os win 10, i may reformat, with fresh install after 4.5 years. So maybe it would be perfect time to do reasonable upgrade to HDD...

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  • Mark L.
  • 5/8/2015 9:31:18 AM
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggs2 of 2 Failing after 24 Hours

Pros: None.

Cons: After 4 years of being on my shelf, I finally opened them to use as backup drives while I build a new RAID array. Both drives exhibit the dreaded "Buffer I/O error on dev sdX".

It's sad that these things are so unreliable as to force people to use a RAID array to backup a RAID array. I guess the Hitachi's are now the top ranked drives. Funny, they used to be called "Deathstars" instead of "Deskstars" because they had a horrible failure rate back in the early 2000's.

0 out of 1 people found this review helpful. Did you? Yes No

  • Brice H.
  • 4/24/2015 4:05:10 PM
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsHappy Overall

Pros: Inexpensive when purchased
good quality, and price for the storage size

Cons: green drive causes a little latency when accessing them for the first time after extended down time

Other Thoughts: I've had 2 of these running in my machine for the past 4 years, and am pretty happy overall with their performance. I use them primarily for movie storage and playback. They are the first "green" drives I've owned, and it took a little while to get used to the latency when trying to access then for the first time after some extended down time, or when watching a movie stored on them, and the picture would pause for a couple of seconds while a drive was warming up. Although a little annoying (this is the only reason I didn't give them 5 eggs), it's not enough to stop me from buying more green drives in the future.

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  • Brice H.
  • 4/24/2015 4:01:27 PM
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsHappy Overall

Pros: Inexpensive when purchased
good quality, and price for the storage size

Cons: green drive causes a little latency when accessing them for the first time after extended down time

Other Thoughts: I've had 2 of these running in my machine for the past 4 years, and am pretty happy overall with their performance. They are the first "green" drives I've owned, and it took a little while to get used to the latency when trying to access then for the first time after some extended down time, or when watching a movie stored on them, and the picture would pause for a couple of seconds while a drive was warming up. Although a little annoying (this is the only reason I didn't give them 5 eggs), it's not enough to stop me from buying more green drives in the future.

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  • Worth K.
  • 3/25/2015 11:22:13 PM
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsIF YOUR DRIVE STILL WORKS SET PARK TO TIME TO 300seconds

Pros: Alot of storage when drive came out, got almost all my data off it before a partition disappeared and drive became unusable (minutes of inactivity) from retrying to read what couldn't be read.

Cons: Failed just after warranty
Apparently heads park every 9 seconds of inactivity
(60,300 park/load for 6,500 hours of use)
542 reallocated sectors out of 2TB should be usable but I'm assuming the heads aren't working properly because dysfunction has exponentially grown.

Other Thoughts: Never bumped during use, low temperatures with airflow, the drive damaged itself.
Forums filled with similar info.
I set drive aside for a couple years, started tinkering with it again (SpinRite,, MHDD, DOS6 format /u , HD Tune 0 fill.... tinkering)
I figured i'd write this to warn others.
IF YOUR DRIVE STILL WORKS SET PARK TO TIME TO 300seconds AND COPY YOUR DATA OFF OF IT!!!

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Western Digital > 
Item#: 9SIA8UW3HA9390
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