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Item#: 9SIA67S21C0647

Western Digital Blue WD6400AAKS 640GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive

  • 7200 RPM 16MB Cache
  • SATA 3.0Gb/s
  • 3 years limited

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

  • newegg SATA 3.0 Gb/s Interface The next-generation SATA interface supports up to 3.0 Gb/s data transfer rates, Native Command Queuing (NCQ) and hot-pluggable point-to-point connections to allow the Western Digital Caviar Blue WD6400AAKS to deliver optimum performance, efficiency, convenience and flexibility.
  • newegg WD WhisperDrive and SoftSeek Technology WhisperDrive technology minimizes noise to virtually below the threshold of human hearing. To cut seek noise, SoftSeek technology streamlines read/write seeking algorithms resulting in more efficient operation.
  • newegg WD Data Lifeguard Technology Exclusive Data Lifeguard data protection features include shock protection, an environmental protection system and real-time embedded error detection and repair. WD's Data Lifeguard technology automatically finds isolates and repairs problems that may develop over the life of a hard drive.
  • newegg WD ShockGuard Technology ShockGuard technology instantaneously protects the hard drive against damage from bumps and vibrations during operation. This technology enables WD Caviar drives to achieve industry-leading shock specifications.

Learn more about the Western Digital WD6400AAKS

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details

Customer Reviews of the Western Digital WD6400AAKS

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  • Jon P.
  • 12/3/2015 2:32:44 AM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsGREAT LONG LASTING HDD

Pros: I purchased this HDD wayyy back in 2008 when i purchased new parts for a top of the line computer.. I had it with a C2D 8400 wolfdale and a Asus P5Q P45 motherboard and 4GB of Gskill memory.. I ran that computer up until June of 2015.. So for 7 years lol. And the only reason i didnt upgrade was because it played every game until now at reasonably high details and FPS..

As for the older PC its now sitting in the closet collecting dust.. Not sure if i can sell it for money or something considering its age.. BUT the HDD im still using on my new PC.. I have a 4790K intel cpu, 16GB G.skill memory, Gigabyte g1 Z97 sniper, R9 290 gpu.. I did purchased two new HDD's. I got a Silicon Power SSD because lets face it.. mechanical HDD's are slow compared to SSD's. I also purchased a WD 1TB Black mechanical drive for storage.

I used the SSD for my OS and current games/programs im using. The 1TB WD Black drive is the 2nd fastest drive in my system and i use it for secondary games or programs i use not so often.. And this WD 640 Blue drive im writing the review for is used for storage for everything else.

8 YEARS now i have had this drive come 2016 and it doesnt make a peep ane i have never had a failure

Cons: no cons

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  • Zane Y.
  • 11/22/2015 5:57:30 PM
  • Ownership: more than 1 year

4 out of 5 eggsReliable

Pros: I bought this Hard Drive for my first build computer, and it's still in my computer. 8 years of honest work, with 6.08 years run time. It's nearing the end of its life though, after the 6 year mark I noticed a loud clicking noise every 1/8th of a second or so, it sometimes got loud, sometimes quiet. I feel it's time for its replacement, I would gladly get another Western Digital HardDrive. May try an SSD

Cons: Loud clicking noise near the end of its long life

Other Thoughts: Great harddrive.

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  • David G.
  • 7/20/2015 11:17:43 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat HDD

Pros: Price/Quality/Ease of installation/Storage

Cons: None

Other Thoughts: HDD on my father in law's CPU died. I got this direct replacement and it arrived fast and works perfect. Thank you. I recommend this seller.

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  • Jon P.
  • 5/22/2015 11:07:51 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsVERY reliable HDD

Pros: What can I say back then when I purchased this HDD "2008" it was one of the fastest hard drives you could buy under the raptors. I still use it in my main system which is also from 2008.. I just recently purchased 1200$ in parts so I will soon only use this HDD as a backup/storage for pictures and so forth..

However the reliability of this HDD cannot be understated 7 years is a very long time... Runs as fast as it did day 1 and hasn't given a single error

Cons: no cons, except its slightly outdated in todays terms

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  • Anonymous
  • 4/19/2015 11:51:32 AM
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsworked ok

Pros: was a great drive, 7 years ago..

Cons: bricked after two years

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  • Wei-Chun H.
  • 3/4/2015 1:29:20 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsReliable.

Pros: Power on hours currently at 59980; almost time for the 60k party. That's nearly 7 years of 24/7 uninterrupted service; three system rebuilds, including a SFF that was shipped around the US multiple times in less than ... ideal conditions. Probably the longest running piece of computer hardware that's currently running in my systems.

Cons: 640GB is getting a little small.

Other Thoughts: Western Digital and HGST are the companies to beat in mechanical storage.

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  • Robert M.
  • 2/15/2015 1:50:00 PM
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsWD Hard Drive

Pros: Easy install and set up.

Cons: None

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  • Donald S.
  • 1/29/2015 8:03:21 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggs

Pros: Great price and great service!

Cons: None

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  • Adam F.
  • 1/14/2015 5:07:27 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsGreat value HDD

Pros: It has never let me down, decent size, not very loud.

Cons: None.

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  • Anonymous
  • 1/8/2015 11:51:25 PM
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsStill going

Pros: I bought three of these almost eight years ago. Since then all three have about 35,000 power_on_hours. One developed some bad sectors a couple years ago but after a reformat is still usable. I am using that one as a secondary backup. The other two are all good.

Cons: I seem to remember having to flash the firmware in order to get these to run in RAID. Wasn't a problem though.

Other Thoughts: They don't make them like they used too. Since I bought these, over the years I've probably returned a sixth of the hard drives I've bought due to failures **cough** seagate **cough**

Also, I paid about ninety dollars eight years ago for one of these. Today in 2014 it is three dollars less than what I paid.

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

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Item#: 9SIA67S21C0647
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