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Western Digital Caviar Blue 640 GB Bulk/OEM Hard Drive 3.5 Inch, 16 MB Cache, 7200 RPM SATA II WD6400AAKS

4.2 out of 5 stars 518 customer reviews
| 19 answered questions

Price: $49.00 & FREE Shipping
Only 2 left in stock.
Ships from and sold by DatabugLLC in easy-to-open packaging.
640 GB
    This fits your .
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  • WD Caviar Blue hard drives have a multitude of features to deliver rock solid performance and ultra-cool and quiet operation.
  • WhisperDrive technology minimizes noise to levels near the threshold of human hearing.
  • SoftSeek technology streamlines read/write seeking algorithms, resulting in more efficient operation.
  • 640 GB capacity holds up to 128,000 digital photos, 160,000 MP3 files, and up to 77 hours of HD video.
  • 3 year limited warranty.
  • Ships in Certified Frustration-Free Packaging
  • WD Caviar Blue hard drives are available with either SATA
  • IntelliSeek - Calculates optimum seek speeds to lower power consumption, noise, and vibration.
4 new from $49.00 5 used from $24.99 6 refurbished from $27.79
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Frequently Bought Together

  • Western Digital Caviar Blue 640 GB Bulk/OEM Hard Drive 3.5 Inch, 16 MB Cache, 7200 RPM SATA II WD6400AAKS
  • +
  • Intel G3258 4 Pentium 3.20 GHz 3M Cache 2 Core Processor (BX80646G3258)
Total price: $115.99
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Technical Details

Capacity: 640 GB
  • Brand Name: Western Digital
  • Model Number: WD6400AAKS
  • Manufacturer Warranty Description: 3 year limited warranty
  • Form Factor: 3.5 inch
  • Hard Disk Rotational Speed: 7200.0 RPM
See more technical details

Compare to Similar Items


This item: Western Digital Caviar Blue 640 GB Bulk/OEM Hard Drive 3.5 Inch, 16 MB Cache, 7200 RPM SATA II WD6400AAKS
Customer Rating 4 out of 5 stars (518) 4 out of 5 stars (7095) 4 out of 5 stars (7403) 5 out of 5 stars (7)
Price $49.00 $49.99 $49.99 $44.00
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By DatabugLLC Amazon.com Amazon.com JusTrade
Hard Disk Size Information not provided 1000 GB 1 TB Information not provided
Speed 7200 RPM 7200 RPM 7200 RPM 7200 RPM
Form Factor 3.5 inch 3.5 inch 3.5-Inch 3.5 inch
Hardware Interface sata 3 0 gb sata 6 0 gb sata 6 0 gb sata 3 0 gb
Cache Memory Installed 16 64 64 16 MB
Add to Cart Add to Cart Add to Cart Add to Cart

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Product Description

Capacity: 640 GB

Product Description

WD Caviar Blue hard drives are available with either SATA or EIDE interface in a variety of cache sizes with a multitude of available features to deliver rock solid performance and ultra-cool and quiet operation. Pick the drive that suits your needs with the confidence in knowing that all WD Caviar Blue drives are built to the highest standards of quality and reliability. With capacities ranging from 40 GB to 640 GB, these drives are the perfect solution for family and business computing.

From the Manufacturer

It's easy to choose the world-class quality of a Western Digital hard drive. We’ve not only designed a drive that's right for you, we've also made it simple to find. These drives are ideal for business, home use, or high performance desktops, and are available in capacities up to 2 TB. With our renowned leading-edge engineering, you'll always make the right choice with WD. And you'll never compromise on quality.

The power of choice. The quality of WD.

WD Caviar® Blue™
Performance and reliability for everyday computing.
Select true blue for reliable quality in everyday use.

WD Caviar® Green™
Cool, quiet.
Select green for doing more with less energy consumption.

WD Caviar® Black™
Maximum performance for power computing.
Select black when you demand the highest performance.



WD Caviar Blue – Performance and reliability for everyday computing

To make drive selection simple, we've gathered all our popular WD Caviar SE16, WD Caviar SE, and WD Caviar drives under one umbrella we call WD Caviar Blue. Built to Western Digital's awarding winning quality standards, these drives are available in a full range of performance features.

Features at a glance
  • Solid performance
  • Ultra-cool and quiet
  • Capacities up to 750 GB
  • 3-years limited warranty


Interface

PATA - Enhanced integrated drive electronics (PATA), also called Parallel ATA (PATA), hard drives have been the standard in the computer industry for more than 10 years.

SATA - Serial ATA (SATA) hard drives are quickly becoming the new standard. Motherboard manufacturers now include SATA inputs on their boards. Because of their considerably narrower cables, SATA hard drives provide increased airflow and less clutter and in the computer system compared to PATA drives.

The performance difference - PATA drives support data transfer rates up to 100MB/sec, and all WD Caviar Blue SATA drive support 3 Gb/s transfer rates.

Cache - WD Caviar Blue is available in 2 MB, 8 MB, and 16 MB cache sizes. Bigger cache memory yields faster performance.

Capacity- We offer drives ranging from 40 GB to 750 GB. Pick the biggest capacity your budget will allow. You can never have too much storage space.

Reliability - We understand the importance of your data, and we are committed to protecting that data with exceptionally reliable products, advanced data protection technology and superior customer support.

Cool - Keeping the drive cool enhances reliability. WD continues to develop new and innovative ways to keep drives cool while they are operating.

Quiet - The technology that Tom's Hardware Guide called "very fast and nearly silent" is used throughout this family of drives. Our WhisperDrive technology minimizes noise to levels near the threshold of human hearing. To cut seek noise, SoftSeek technology streamlines read/write seeking algorithms, resulting in more efficient operation.


View IntelliSeek demo here.

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. (Available on 120 GB capacities and above)

IntelliSeek™ - Calculates optimum seek speeds to lower power consumption, noise and vibration. (Available on 120 GB capacities and above)

Compatible - We perform tests on hundreds of systems and a multitude of platforms in our FIT Lab and Mobile Compatibility Lab to give our customers confidence that our drives will work in their systems.

How this WD hard drive protects your data

  • Data Lifeguard is an exclusive set of data protection features, including 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.

  • Data Lifeguard Tools are software utilities designed for WD hard drives that work with the embedded Data Lifeguard features to make hard drive installation,diagnostics and repair both simple and worry-free.

  • ShockGuard instantaneously protects the hard drive against damage from bumps and vibrations while it is running. This technology enables WD Caviar drives to achieve industry-leading shock specifications.

Ideal For
Family and business computing.


Product Information

Capacity:640 GB
Product Dimensions 5.8 x 4 x 1 inches
Item Weight 1.4 pounds
Shipping Weight 2 pounds (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item is not eligible for international shipping. Learn More
ASIN B0017XUX7O
Item model number WD6400AAKS
National Stock Number 7025-01-624-0406
Customer Reviews
4.2 out of 5 stars 518 customer reviews

4.2 out of 5 stars
Best Sellers Rank #1,499 in Electronics > Computers & Accessories > Data Storage > Internal Hard Drives
Discontinued by manufacturer Yes
Date first available at Amazon.com July 7, 2004

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Important Information

Seller Warranty Description
3 Year Databug Warranty. Ships Same Day

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Size: 500 GB
I got this in desperation when I needed a disc drive for my G5.
It has been months.
Not a hiccup.
It is very fast. Noticeably faster than the stock 160.
And it is very quiet.
It has increased my system speed and gives lots of room for expansion.
I am impressed.
Update January 2009. This drive is still going strong and works great every day.
Update January 2010. This fine piece of equipment has yet to have a problem.
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Size: 500 GB Verified Purchase
As M. Mola points out, this is an OEM package. It not only has no instructions or software, it also does not have a connector cable, an IDE four-pin to SATA power adapter, or mounting screws.

If you want to replace a failed drive and don't want the clutter that usually comes with a drive, this is for you.

If you want to add an additional drive to an existing system, you'll need to get the cabling and mounting hardware elsewhere.
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Size: 640 GB
I build computers as a hobby. Why pay for someone else to build one (one size fits does not fit all) when building your own is not too difficult and you can build with quality parts tailored to your own specific needs. Case in point, the WD 640GB HDD. Large hard drive prices are economical right now. Generally speaking, the larger the drive, the less the cost per gigabyte (GB). At Amazon's prices the WD 640GB drive was about $10 bucks more than the WD Caviar 16 320 GB drive with the same cache. Western Digital has recently color coded their drives: Black (high performance), Blue (mainstream) and Green (no brainer: ecologically friendly-for a hard drive). Where does marketing get these ideas? The Caviar 16 640GB falls into the Blue category. It is amazingly fast and quiet, thanks to its 16 MB cache and 3 Gb/s transfer rate. The technology is interesting in that WD utilized two 320GB platters which gives this drive an edge as compared to say 750 GB drives with similar cache size. The drive itself is nearly silent and the quietest HDD I have used. Its rated over 90MB/sec read and write speeds, which is very fast. Yes there are faster hard drives, but for the money this drive is an excellent choice.

My only complaint: the drive is warranted for 3 years not 5.

Amazon had the lowest price I found, and shipped the drive quickly. Turn around time from placing the order to delivery at my door step was four days. Stable, reliable and excellent price to performance ratio, this drive is a great choice for everyday computing needs.
12 Comments 80 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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By Kleo on November 4, 2007
Size: 500 GB Verified Purchase
I bought this to replace the hard drive that failed in my imac. What can I say: no problems setting up, more space, pretty cheap - basically no complaints!
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Size: 640 GB Verified Purchase
The hard drive worked great I had to go online to get the product manuals and purchase the cables since it is a SATA II drive and my computer supports SATA I it took me several hours to make it work but once I figured out how to slow down the drive with the jumper which was not supplied it was a plug and play process. Make sure you know your system specifications before you order and get the needed cables and jumper & Screws all at once.
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Size: 500 GB
We chose to buy from Amazon instead of Newegg. The methods of storing/handling and packaging these raw, OEM drives causes a lot of DOA units.

Newegg (as of 8 months ago from this posting) still has problems with DOA units. I think Newegg may stack these and stress surface mount components, etc. No such problems with the amazon.com drives so we buy 100% of our drives from Amazon.

Pros
- Quiet
- Bulletproof (the AAKS) We have 20+ (now 30+) of these in Dell T3400 Precision workstations and put 3 in each machine.
NOTE: We have not had even ONE problem in 2+ years of NORMAL use - see 01/05/2010 update - (oldest 12/30 drive units are 2+ years old, others are 1+ years).

Cons
- None that I know of so far.

Did a lot of research on the platters they use on these drives and the technology. The AAKS seems to be the sweet spot in the line. AACS and AAJS were a bit different but not much. The WD5000CSRTL model seemed to have the most problems.

The environment these drives run are lab servers that are "ON" 24/7 so we don't get the same ON/OFF cycles that a home system would have.

Checking the hard drive
Run the "WD diagnostics" that come with the disk or you can download the utility from the Western Digital site to find bad sectors just in case you get a bad one (we never have).

This utility will run on *ANY* disk (not just WD). It may take a few hours for a "full scan" but it's time well spent.

01/05/2010 Update: Finally lost one of these 500GB drives due to a move to a new building. The drive was near 2+ years old. The head didn't crash and the drive spun up but Windows XP wouldn't recognize it so it needs some specialized software kung-fu to re-mount the drive.
Read more ›
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Size: 500 GB Verified Purchase
It's a good drive so far. I have a Mac Pro and had two of these installed already. I was using them to store my movies and photos. Luckily I had them configured using Leopard's built in raid software where all the data is automatically shadowed to the other drive. A week after I ordered this drive, as an upgrade to another computer, one of these hard drives in my MAC pro, failed. Luckily, because it was in the RAID configuration, I did not loose my data. I've learned my lessons over the years and backup-especially of assets like digital photos is very important--I anticipate some disasters. The good news is, the drive was still under warranty, so I shipped it back to Western Digital and they send me a replacement the next day. I'm very pleased with the customer service and i've had many WD drives over the years and this is the first one that went south.
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