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Western Digital 500 GB WD Black SATA III 7200 RPM 32 MB Cache Bulk/OEM Desktop Hard Drive

170 customer reviews

List Price: $149.99
Price: $102.74 & FREE Shipping
You Save: $47.25 (32%)
Only 4 left in stock.
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500 GB Size Chart
  • Enter your model number above to make sure this fits.
  • Ships in Certified Frustration-Free Packaging
  • Standby: 0.9 W, Sleep: 0.9 W
  • Interface: SATA 6 Gbps, Average latency (ms): 4.2ms
  • Capacity: 500 GB, Rotational Speed: 7200 RPM, Cache: 32 MB
  • Power Dissipation(Average),:Read/Write: 6.0 W, Idle: 5.6 W
9 new from $97.54 3 used from $45.00 3 refurbished from $47.00
$102.74 & FREE Shipping Only 4 left in stock. Ships from and sold by DatabugLLC.

Special Offers and Product Promotions

Size: 500 GB
  • Get free shipping on this item when you purchase 1 or more Qualifying items offered by DatabugLLC. Here's how (restrictions apply)

Technical Details

Size: 500 GB
  • Brand Name: Western Digital
  • Model Number: WD5002AALX
  • Manufacturer Warranty Description: 5-Year Limited
  • Hard Disk Rotational Speed: 7200 RPM
  • Buffer Size: 32 MB
See more technical details

Product Description

Size:500 GB

Product Description

Western Digital Caviar Black WD5002AALX 500GB SATA3 7200rpm 32MB Hard Drive, Bulk

From the Manufacturer

WD Caviar Black Hard Drives – Maximum performance for power computing.

WD Caviar Black high performance 3.5-inch SATA hard drives combine 7200 RPM spin speed, an integrated dual processor, and dual actuator technology for lightning-fast performance in demanding desktop, workstation, and multi-drive systems. And 500 GB capacity gives you the space you need to hold plenty of photos, videos, and files. Best of all these drives are backed by a 5-year limited warranty.

Why you should choose WD Caviar Black:

WD Caviar Black delivers industry-leading performance that's perfect for hard-core gaming and intensive photo and video editing.

Maximum performance.
Sophisticated performance enhancing features deliver the speed you need to work faster, not longer.
Maximum Performance
No compromises.
High performance, high reliability, cutting edge technology and a 5-year limited warranty make up WD Caviar Black, the ideal drive for those who demand only the best.
5-year warranty
Award winning.
This 7200 RPM speedster is at the top of its class when it comes to performance and reliability.
Award winning
Features at a glance

  • Industry-leading performance
  • 500 GB of desktop storage
  • SATA 6 Gb/s interface
  • Dual processor technology
  • 5-year limited warranty
SATA 6Gb/s
WD Caviar Black
Ideal for:
  • Power computing applications such as intensive photo or video editing
  • Maxed out gaming systems
  • Adding lots of storage in desktop PCs
  • Adding extra storage space for photos, videos and music

SATA 6 Gb/s interface - Twice the interface speed with backwards compatibility to legacy SATA standards.

Dual processor - Twice the processing power to maximize performance.

Dynamic Cache - WD's dynamic caching algorithm improves performance in real time by optimizing cache allocation between reads and writes. For example, if there's an overwhelming percentage of read traffic as opposed to write traffic, the drive automatically allocates more cache for read data, which reduces congestion and improves overall drive performance.

WD Certified

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.

StableTrac - The motor shaft is secured at both ends to reduce system-induced vibration and stabilize platters for accurate tracking, during read and write operations which enables consistently higher performance.

Desktop / Consumer RAID environments - WD Caviar Black Hard Drives are tested and recommended for use in consumer-type RAID applications. (RAID-0 / RAID-1)*

*Business Critical RAID Environments – WD Caviar Blue Hard Drives are not recommended for and are not warranted for use in RAID environments utilizing Enterprise HBAs and/or expanders and in multi-bay chassis, as they are not designed for, nor tested in, these specific types of RAID applications. For all Business Critical RAID applications, please consider WD's Enterprise Hard Drives that are specifically designed with RAID-specific, time-limited error recovery (TLER), are tested extensively in 24x7 RAID applications, and include features like enhanced RAFF technology and thermal extended burn-in testing.

Upgrading your drive is easy - WD Acronis TrueImage, available as a free download on the WD Support site, enables you to copy all your data to a new drive so you don't have to reinstall your operating system to get all the benefits of a new drive. Note: Bare drive does not include any cables or mounting hardware.

The WD advantage - WD puts our products through extensive Functional Integrity Testing (F.I.T.) prior to any product launch. On average, each new product goes through 600,000 hours of testing. WD also has a detailed Knowledge Base with more than 1,000 helpful articles. You can also call toll-free support 7 days per week in the U.S. and Canada. See the WD Support site for full details.

WD-certified packaging - All WD drives purchased from Amazon.com are shipped in WD-certified hard drive packaging. It is designed and fully tested to provide WD products with the highest of safety while in transit. With WD-certified packaging, you can rest assured that your WD hard drive will arrive safely, fully protected, in a non-descript, easy-open package.

Works with Windows 7/Vista/XP/2000, Mac and Linux operating systems.

You might also consider:

3.5-inch Internal
Comparison Chart
WD Caviar Blue WD Caviar Green WD Caviar Black WD VelociRaptor
Value and reliability
for every day computing.
Cool, quiet.
Maximum performance
for power computing.
The fastest SATA hard drive
on the planet.
Ideal for
Family and business computing.
Desktop PCs, external drives and NAS devices.
Photo and video editing, and
maxed out gaming systems.
Performance enthusiast
systems and workstations.
Capacity range
80 GB – 1 TB
320 GB – 3 TB
500 GB – 2 TB
150 GB – 600 GB
SATA 6 Gb/s
SATA 3 Gb/s
PATA 100 MB/s
SATA 6 Gb/s
SATA 3 Gb/s
SATA 6 Gb/s
SATA 3 Gb/s
SATA 6 Gb/s
Form factor
8 MB – 32 MB
16 MB – 64 MB
32 MB – 64 MB
32 MB
Limited warranty
Highest capacity
Highest performance
Photo/video editing

Product Details

Size: 500 GB
  • Product Dimensions: 5.8 x 4 x 1 inches ; 1.1 pounds
  • Shipping Weight: 1.2 pounds (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B004DMFAJ2
  • Item model number: WD5002AALX
  • Average Customer Review: 4.3 out of 5 stars  See all reviews (170 customer reviews)
  • Amazon Best Sellers Rank:
  • Product Warranty: For warranty information about this product, please click here
  • Date first available at Amazon.com: November 27, 2010

Important Information

Seller Warranty Description
3 Year Databug Warranty.

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

10 of 11 people found the following review helpful By Brandon on August 22, 2011
Size: 750 GB Verified Purchase
The drive is a great buy. It's fast, but not silent. The people saying it sounds like a coffee pot are ridiculously overstating the noise level. Yes, you can hear it during heavy writes/startup, but it is nowhere near a dealbreaker. It's probably louder than your case fans, but nothing that will make you regret your purchase unless you're building a PC aimed at silence.
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6 of 6 people found the following review helpful By Amazon Customer on February 14, 2012
Size: 1.5 TB Verified Purchase
I originally looked for 2 - 1TB WD Black to recreate my RAID 1, after having had two failures with my Seagate Barracuda 1TB disks. What I found instead was 2 - 1.5TB WD Black disks for an extra nine dollars a piece, as compared to the 1TB disks. I bought them and were received in a few days. They seem to work fine as individual units, since I've had no time to recreate my RAID 1 yet.
I would like to point out that although I'm against oversized shipping boxes for no reason, I'm also against packing two heavy hard disks like the ones I received in a very small box without the proper space for the correct type of bubble wrap. It was the poorest packing I ever received and am afraid that all the bouncing during transit will catch up with me in the form of a premature failure of the units, once they go into service as originally intended.
I hope AMAZON will take action in this matter, since it seems to be a recurrent situation.
I rated the units at 4 stars because they are not guilty of the poor packaging.
Someone else deserves between zero and minus one star for the lack of common sense when preparing the units for shipment.
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6 of 6 people found the following review helpful By M. Saunders on June 2, 2011
Size: 750 GB Verified Purchase
I got this drive to place into a striped RAID configuration with an older, 32MB cache WD 750 Black drive.

Functionality-wise, this new drive works fine. The RAID volume is running and fast. Like with most hard drives, you want it to "just work" and it does. Not much to say here.

However, this drive is easily 3 times louder than its older WD counterpart! I haven't heard a drive with head seeks this noisy in a long time. It's not something I cannot ignore, and it's not the kind of sound you hear when a drive is failing, but take the "clicking" you heard on most drives when they're active and imagine them 3x louder. That's this drive.

I'm actually going to see if WD has a utility to control the acoustic mode of the drive. I've worked hard to build a quiet machine (with Noctua fans/etc.) but adding this drive has just set me back in that goal. It's livable, but definitely not ideal.
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6 of 7 people found the following review helpful By John on July 22, 2011
Size: 750 GB Verified Purchase
**update 8/6**

I wanted to update my review. Today the hard drive crashed and was rendered unbootable. I was able to still retrieve data off it after docking it to a hard drive dock. I went back to my backup imaged WD Green 750GB hard drive for now and ordered the Green 1TB drive. I've had bad luck with the Blue and now the Black models crashing, never had issues with the Green so will return this back to Amazon and get that.

-I wanted to add the fact that there is no issues with Amazon's packaging...it is shipped in a small box via USPS and arrived in perfect condition.

My 750GB Western Digital Green hard drive was getting a bit old, so I bought a 750GB WD Black drive...hoping to get a speed boost from the 7200 RPM and extra cache. As far as I can see, I don't feel a speed increase. But nonetheless it's not any slower than the Green, and the noise level although loud is not a big deal because I have a noisier fan in my computer.

I think all Western Digital hard drives are reliable and fast (Blue, Green or Black) and you won't go wrong getting one. And if you do end up with a bummer, then their warranty service is excellent...and for the black you get 5 years (which by then the industry would have switched the SSD drives).

The True Image software that Western Digital provides for download on their website is a great piece of software which I use to image drives (ala Norton Ghost) for use as backup...if the hard drive ever crashes I just swap the back up in and I'm up and running.

Pros: Legendary Western Digital reliability, decent speed, availability of Imaging software from website, long warranty

Cons: a bit noisy, gets hot (if you want a hard drive that runs cool and quiet...but a little slower go with the Green series
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3 of 3 people found the following review helpful By Big K on September 1, 2011
Size: 1.5 TB Verified Purchase
I purchased this to install Steam on since my boot drive was running out of space. I was running on (early SATA) Raid 0 config before and so far the caviar black seems to run things faster by itself than the raid setup. Eventually I plan to replace the old RAID setup with SSD but this drive was a great in-between option for me while I save up $$. If you are not looking for ultimate gaming performance I think this would be a great stand alone drive as well since it is quick and has plenty of storage. Sound is also an issue for me and so far the only way I can tell this is running is by the blinking HDD light on my case.
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5 of 6 people found the following review helpful By Z Zhang on February 5, 2011
Size: 640 GB Verified Purchase
As usual has produced an outstanding hard drive, especially considering the features and the price. I have purchased hard drives from multiple manufacturers and I keep coming back to WD for their reliability. And despite the comments below, I probably still will.

But beware o the noise this drive can make. It's quiet when under light loads. But if you're doing heavy reading/writing on the drive, the thing is loud. I could hear the thing going in the next room when I was doing a fresh install! It's the same issue when booting up. It's normal hard drive noise, but I haven't heard a hard drive this noisy since 1996 when I had my first computer.

If you don't mind the noise, this hard drive is a really great choice. But if you want a quiet experience, then this is definitely not an option.
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