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Western Digital Black WD6401AALS 640GB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive Bare Drive
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  • newegg High Performance Electronics Architecture The Western Digital Caviar Black WD6401AALS boasts dual processors and 32MB cache to deliver ultra fast read/write performance.
  • newegg SATA 3.0 Gb/s Interface The Western Digital Caviar Black WD6401AALS 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 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 WD6401AALS

Quick Info

Warranty

  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years


Customer Reviews of the Western Digital WD6401AALS

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  • Bohdan K.
  • 3/30/2015 12:01:56 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsWorked great until failed.

Pros: Fast, long warranty.

Cons: Failed. Warranty department replaced it with a wrong model.

Other Thoughts: I bought this HDD over 5 years ago to use in my HTPC. I used it 24/7 mostly as a DVR and to watch online streaming content. So every day it would save several gigabytes of data. The harddrive ran great for 4 years and 11 month. I guess "luckily" for me it decided to fail during the last month of the warranty. However it failed quite badly, and I almost lost Gigabytes of personal pictures I did not backed up. Checkdisk would fail 30 seconds into the scan. However commercial data recovery software running for several days recovered all of my important files. So I thought it was a fluke, formatted the drive and re-installed the OS and software. But after a week or two it failed again with the same symptoms on the same sector.
At this time I was past the warranty period. I must say the WD service representative was very helpful with RMA, told me not to worry about several days of lapsed warranty, and even did not ask for any purchase receipts. However slightly disappointing was warranty service department, which sent me 2.5 inch Caviar Black drive, which is a bit slower than 3.5 inch drive. I'm sure they would sent me the right drive next time if I would contact them, but by the time I got the drive, I put in an SSD into my HTPC and used the 2.5 drive in my kid's laptop.

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  • Melissa H.
  • 3/11/2015 12:44:12 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsBought September 2010

Pros: Bought this drive to replace a tiny 150 GB WD drive September 2010 (yes 2010) and it has worked fantastic and is still going strong with daily use (averaging 6 hrs up per day). No problems installing OS to it. Highly recommend it.

Cons: None

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  • THOMAS D.
  • 2/5/2015 9:37:12 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsOne good one bad

Pros: When they work they work well.

Cons: One was bad.

Other Thoughts: I bought two of these in 2010. One went out less than a month later. The other is still in use.

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  • MICHAEL W.
  • 1/9/2015 8:39:00 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsWD black WD6401AALS 640GB

Pros: I put 2 of these in my system 5 years ago. Running 24/7. Never a problem.

Cons: None

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

  • Patrick H.
  • 1/2/2015 8:19:38 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsWorth The Money

Pros: Worked great, reliable for a desktop running nearly 24/7 and then packed in a closet for 2 years and then running 24/7 for another year. Ran Windows Vista 64-bit and then Windows 7 64-bit. Quiet.

Cons: No complaints really. Just annoyed. I bout a WD Black for the 5 year warranty and ability to run 24/7 with that warranty attached. i have had OEM hard drives and other cheap hard drives last 6-10 years with no issues. This one just started throwing bad sectors which happen to interfere with my OS since it is on that disc about a week ago. Windows tried to fix the bad sectors, but I am still getting very sluggish performance before the day is over. A restart tempoaririly fixes the issue until I have performed enough actions to traverse the bad the sectors.

******* Here's the Catch********
I bought this driver on 1/9/10. Today is 1/2/15. My drive just failed at exactly 5 years. I will call but doubt WD will uphold my 5 year warranty. I will argue that their 3 year warranty drives have always outlasted 5 years. Hope they listen to an upset customer.

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

  • Magomed M.
  • 11/28/2014 6:30:38 PM
  • Tech Level: Somewhat Low
  • Ownership: more than 1 year
  • Verified Owner

3 out of 5 eggsslow

Pros: own it for more then 3 years still works well and quiet

Cons: kinda slow and my system didnt like it. always liked Seagate

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

  • Zachary S.
  • 11/26/2014 11:02:30 PM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsOld Model, Ridiculous price?

Pros: Not a bad drive. It's lasted me for almost 5 years now, though it isn't my system drive anymore. Never had a problem with it.

Cons: It seems to be over three times the price it was 5 years ago (if Newegg isn't just redirecting me to some model upgrade, and even that'd be too expensive). Definitely doesn't seem worth that price.

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

  • Andrew M.
  • 10/17/2014 5:59:33 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggs

Pros: Still running strong after more than 5 years. I think that says all you need to know.

Cons: None.

2 out of 2 people found this review helpful. Did you? Yes No

  • Eric K.
  • 10/8/2014 7:40:59 AM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsStill works

Pros: After three years, still going strong.

Cons: None

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

  • Chad H.
  • 3/29/2014 2:21:28 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggs

Pros: Solid HDD

Cons: None

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

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