- Reduced power consumption - WD has reduced power consumption making it possible for energy conscious customers to build systems with higher capacities and the right balance of system performance, ensured reliability, and energy conservation
- Cool and quiet - drives that benefit from WD GreenPower Technology yield lower operating temperatures for increased reliability and low acoustics for ultra-quiet PCs and external drives
- IntelliPower technology - a fine-tuned balance of spin speed, transfer rate, and caching algorithms designed to deliver both significant power savings and solid performance
- 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
Technical Details
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Product Specifications
General
BrandWestern Digital
Item Height
25 millimetres
Item Width10.2 centimetres
Hard Drive
Hard Drive Size2 TB
Hard Drive InterfaceSerial ATA
Additional Specifications
Wattage5 watts
Product details
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Product Description
Box Contains
Internal HDD
Product Description
Storage
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Customer Reviews
Most Helpful Customer Reviews
45 of 48 people found the following review helpful
There are a few different versions of this drive with slightly different geometries (a few more or a few less sectors) and different buffer memory.
This is the OEM version which is usually supplied in an anti-static sleeve and sold in bulk to computer builders. As such, it will not have the normal retail packaging, fixing screws or the information leaflet. You can buy the screws in packs of about 100 quite cheaply or you may be able to beg a few from anyone who builds or repairs computers. Functionally, there is no other difference between OEM and retail versions. The OEM version tends to be slightly less expensive.
As it does not have the normal protection that the retail pack would normally provide and it has been known for some sellers to do rather stupid things when despatching OEM drives. If you should be a victim to one of these sellers, and purchased via Amazon, I would suggest that you return the drive for refund, purchase from a supplier with more understanding of the product and complain to Amazon!
The distinguishing feature of the Caviar Green series is that the motor speed is not constant. In normal use when writing or reading, it will operate at it maximum rotational speed but when inactive, the motor will slow. This will save a proportion of it its normal wattage. It does mean that the drive needs a moment to reach maximum speed from a lower one.
This is the OEM version which is usually supplied in an anti-static sleeve and sold in bulk to computer builders. As such, it will not have the normal retail packaging, fixing screws or the information leaflet. You can buy the screws in packs of about 100 quite cheaply or you may be able to beg a few from anyone who builds or repairs computers. Functionally, there is no other difference between OEM and retail versions. The OEM version tends to be slightly less expensive.
As it does not have the normal protection that the retail pack would normally provide and it has been known for some sellers to do rather stupid things when despatching OEM drives. If you should be a victim to one of these sellers, and purchased via Amazon, I would suggest that you return the drive for refund, purchase from a supplier with more understanding of the product and complain to Amazon!
The distinguishing feature of the Caviar Green series is that the motor speed is not constant. In normal use when writing or reading, it will operate at it maximum rotational speed but when inactive, the motor will slow. This will save a proportion of it its normal wattage. It does mean that the drive needs a moment to reach maximum speed from a lower one.
172 of 189 people found the following review helpful
By Snrub
Amazon Verified Purchase
The drive I received is WD20EARX-00AZ6B0 manufactured in Sep 2011.
It is officially the replacement for the WD Green WD20EARS. Having owned several WD20EARS, I expected this drive to be similar or perhaps better. However the drive I received is massively slower than my existing WD20EARS. Average read speed is 84MB/s according to HD Tune, compared to 106MB/s on my WD20EARS. 22MB/s, big difference!
I was also disappointed to note that it has 4x500GB platters. This is old technology, Western Digital introduced 667GB platters in late 2010. Why they would put these old components in a brand new drive with faster interface is baffling.
You should care about this because with 667GB per platter you only need 3 platters for a 2TB drive, hence they have less components and are more reliable. Also higher density platters generally have better sequential performance (assuming the rotational speed is the same). Finally, less spinning mass = less vibration and less power consumption.
*UPDATE 3/12/2012*
This drive has since died. It lasted a little over 1 year.
The warranty replacement service in the UK is very slow. It took over 3 weeks to receive a new hard-drive. The drive I received was a newer 3-platter version WD20EARX-00PASB0
It is officially the replacement for the WD Green WD20EARS. Having owned several WD20EARS, I expected this drive to be similar or perhaps better. However the drive I received is massively slower than my existing WD20EARS. Average read speed is 84MB/s according to HD Tune, compared to 106MB/s on my WD20EARS. 22MB/s, big difference!
I was also disappointed to note that it has 4x500GB platters. This is old technology, Western Digital introduced 667GB platters in late 2010. Why they would put these old components in a brand new drive with faster interface is baffling.
You should care about this because with 667GB per platter you only need 3 platters for a 2TB drive, hence they have less components and are more reliable. Also higher density platters generally have better sequential performance (assuming the rotational speed is the same). Finally, less spinning mass = less vibration and less power consumption.
*UPDATE 3/12/2012*
This drive has since died. It lasted a little over 1 year.
The warranty replacement service in the UK is very slow. It took over 3 weeks to receive a new hard-drive. The drive I received was a newer 3-platter version WD20EARX-00PASB0
4 of 4 people found the following review helpful
By luke997
TOP 1000 REVIEWER
Amazon Verified Purchase
Excellent, cool and quiet, perfect for servers/NAS, more than fast enough for media copying/streaming (even from multi sources).
Using it in Noontec N5 and can barely hear it from 1.5m.
Using it in Noontec N5 and can barely hear it from 1.5m.
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3.8 out of 5 stars
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Most Recent Customer Reviews
5.0 out of 5 stars
Works fine for me
The only thing you can ever be sure about a hard drive is that at some point it will fail - its just when! Read more
Published 1 hour ago by Trev-R
4.0 out of 5 stars
Internal HD
The worst thing that can happen is for your data storage additional HD to fail .... so I find it quite intriguing that there are adverse comments re speed. Read more
Published 2 days ago by Kathy.S
5.0 out of 5 stars
So far it works perfectly
The product is pretty much 2TB and works fine, all I want. Obviously it is a 3.5" HDD and isn't as fast as my SSD but it's prefect for storage and backup. Read more
Published 2 days ago by A.S.
4.0 out of 5 stars
Western digital 2tb drive
Arrived promptly and was packed well. Seems to do as described and no problems with it. Would buy it again
Published 4 days ago by Mrs. C. Roberts
5.0 out of 5 stars
Working perfectly for several months
Arrived on time,
and has been working perfectly in HP MicroServer
(on permanently) since purchased some months ago.
Took 1 minute to install.
and has been working perfectly in HP MicroServer
(on permanently) since purchased some months ago.
Took 1 minute to install.
Published 6 days ago by Timothy Murphy
5.0 out of 5 stars
WD hard drive
Installed automatically on my Mac Pro, reads whole 2TB instantly and very quiet compared to the Seagate which was nothing but trouble, If you have a Mac Pro avoid Seagate 3TB as it... Read more
Published 6 days ago by daveat22
5.0 out of 5 stars
Packaging solution...
I wanted to buy more of these drives because they seem to be trouble-free and fast enough for me (mostly storing movies, audiobooks and music for trips to and from our little house... Read more
Published 7 days ago by Richard Rennie
5.0 out of 5 stars
Great value and performance
5 star product, great value for money. I bought two of these for my home server. Ideal for storing large media files, movies, music and pictures and for an always on PC. Read more
Published 7 days ago by Rutger
4.0 out of 5 stars
Doesn't work in D-Link NAS
Bought this to be part of my 2-bay D-Link Sharecenter NAS enclosure, along with a Seagate Barracuda one. The Seagate one works fine but it didn't detect this WD one. Read more
Published 14 days ago by Wheatabeat
5.0 out of 5 stars
Perfect
I was looking for 2 hard drives to my Netgear ReadyNAS Duo 2-Bay and decided to but those ones.
So far have no issues with them. Quiet and fast enough for my needs. Read more
So far have no issues with them. Quiet and fast enough for my needs. Read more
Published 19 days ago by Viallos
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