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Western Digital 12TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD121KFBX

4.5 4.5 out of 5 stars 4,374 ratings

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12TB

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About this item

  • Available in capacities ranging from 2 to 22TB(1) | (1) 1GB = 1 billion bytes and 1TB = 1 trillion bytes. Actual user capacity may be less depending on operating environment.
  • For RAID-optimized NAS systems with unlimited number of bays
  • Rated for 550TB/yr workload rate(2) | (2) Annualized Workload Rate = TB transferred x (8760 / recorded power-on hours). The maximum rated workload is specified for operating at typical temperature of 40C. Workload Rate will vary depending on your hardware and software components and configurations.
  • Designed to handle the demands of high-intensity 24x7 multi-user NAS environments
  • Western Digital partners with a wide range of NAS system vendors for extensive testing to ensure compatibility with most NAS enclosures
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Top Brand: Western Digital

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4.6/5 star rating from 100K+ customer ratings
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Western Digital 12TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD121KFBX
Western Digital 12TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD121KFBX
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Price$285.00$279.99$307.99$79.99-13% $129.90
List Price:$149.99
-57% $299.99
List:$699.99
Delivery
Get it as soon as Sunday, Mar 17
Get it as soon as Sunday, Mar 17
Get it as soon as Sunday, Mar 17
Get it as soon as Sunday, Mar 17
Customer Ratings
Storage Capacity
4.5
4.6
4.5
4.7
4.5
4.8
Easy to install
4.5
3.8
4.5
4.6
4.7
Value for money
3.9
4.1
3.9
4.6
4.2
Durability
4.7
4.0
4.7
3.9
Noise level
3.9
4.0
3.9
3.9
Sold By
Giz-Promo
Amazon.com
TheTechGroup
Amazon.com
Endless Technology Solutions
Amazon.com
storage capacity
12 TB
12000 GB
16 TB
1000 GB
14 TB
4000 GB
hardware interface
sata 6 0 gb
sata 6 0 gb
sata 1 5 gb
solid state drive
sata 6 0 gb
solid state drive
compatible devices
Desktop
Compatible with Windows, Windows Server, and Linux
Desktop PC, Storage System
Laptop, Motherboards
Desktop
Laptop, Motherboards
form factor
3.5-inch
3.5-inch
3.5-inch
M 2
3.5-inch
M.2 2280
write speed
0
0
4900
6600
read speed
6 gigabytes per second
259 megabytes per second
5150 megabytes per second
7300 megabytes per second

From the manufacturer

ARCHIVE AND SHARE

ARCHIVE AND SHARE

Designed specifically for medium or large scale business customers, WD Red Pro drives are available up to 22TB and built for NAS systems.

For the Demands of Big Business

Engineered to handle high-intensity workloads in 24/7 environments, WD Red Pro is ideal for archiving and sharing, as well as RAID array rebuilding on extended operating systems such as ZFS or other file systems. These drives add value to your business by enabling your employees to quickly share their files and back-up folders reliably in your NAS solution.

Larger NAS Bay Shock Protection

WD Red Pro drives are equipped with a multi-axis shock sensor that automatically detects subtle shock events and dynamic fly height technology which adjusts each read-write function to compensate and protect the data. This combination of technology further protects the drives in large NAS environments and helps increase hard drive reliability.

24/7 Environment

Since your NAS system is always on, a reliable drive is essential. With an MTBF of up to 2.5 million hours, the WD Red Pro drive is engineered to tackle 24/7 environments.

What's in the box

  • HDD
  • Product information

    Technical Details

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    Additional Information

    Warranty & Support

    Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
    Product Warranty: For warranty information about this product, please click here

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    Western Digital 12TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD121KFBX


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    Product Description

    Designed specifically with medium or large scale business customers in mind, WD Red Pro drives are available for up to 24-bay NAS systems. Engineered to handle high-intensity workloads in 24x7 environments, WD Red Pro is ideal for archiving and sharing, as well as RAID array rebuilding on extended operating systems such as ZFS or other file systems. These drives add value to your business by enabling your employees to quickly share their files and back-up folders reliably in your NAS solution.

    Product guides and documents

    Customer reviews

    4.5 out of 5 stars
    4.5 out of 5
    4,374 global ratings

    Customers say

    Customers like the value and ease of installation of the hard drive. They say it's a good choice for data storage and a solid investment for both enthusiasts and those looking to secure. They also appreciate performance. However, some customers disagree on noise, warranty, quality, and packaging.

    AI-generated from the text of customer reviews

    157 customers mention125 positive32 negative

    Customers like the performance of the computer drive or storage. They say that it performs well, all the drive features seem to work, and is reliable. Some say that the drives are silent and function smoothly. They are reliable running 24/7/365 and are a more reliable drive for important data.

    "...massive 20TB capacity; it's a symphony of quiet efficiency and steadfast performance...." Read more

    "...The drive lives up to the "Pro" in its name, providing reliable performance and ample storage capacity for my needs...." Read more

    "...Product is safely delivered and works fine.As all HDDs do, 22TB means actually 20TB...." Read more

    "...were easily installed and detected properly in my system with flawless performance so far...." Read more

    61 customers mention53 positive8 negative

    Customers like the value of the computer drive. They mention that it offers 6 TB of storage for under $250, NAS rated, and WD. Customers also say it's a good choice for data storage, either in a raid array or as an individual, and is a solid investment for both enthusiasts and those looking to secure their information.

    "...20TB WD Red Pro is like the Rolls Royce of NAS hard drives – luxurious in capacity, whisper-quiet in operation, and reliable to its core...." Read more

    "...'s proven track record for quality products, it's a solid investment for both enthusiasts and those looking to secure their family's crucial..." Read more

    "...And my NAS shows it is fully capable of serving 20TB, which is great!!!Love this product,Love this seller,..." Read more

    "...As for the purchase, its a good price but saving 32%? No. the Drive is 269 list. On this, the first of December 2023, its 239 at WD, shipped...." Read more

    33 customers mention32 positive1 negative

    Customers find the installation process of the computer drive to be easy. They mention that the packaging was great, and the installation was very easy. Customers also say that the drive works great and rebuilt their Raid 5 in no time.

    "...Setting this up was a walk in the park, user-friendly enough for even the most tech-averse...." Read more

    "...With the ease of setup and the brand's proven track record for quality products, it's a solid investment for both enthusiasts and those looking to..." Read more

    "...The drives were easily installed and detected properly in my system with flawless performance so far...." Read more

    "It was a great price and easy install. The noise has me concerned though. Everytime it turns on it starts making noises, compared to other drives...." Read more

    122 customers mention67 positive55 negative

    Customers are mixed about the quality of the computer drive. Some mention it's solid, reliable, and quiet in operation. However, others say that they've had six drive replacements and have experienced hard drive failures.

    "...drives – luxurious in capacity, whisper-quiet in operation, and reliable to its core...." Read more

    "...Then, I got notice the order was canceled due to box being damaged. No worries, just send me 3 more. Amazon wouldn't do it...." Read more

    "nice product - want to buy again if more disc" Read more

    "...One was DOA. The other drives are being thoroughly tested and thus far appear to be working...." Read more

    104 customers mention38 positive66 negative

    Customers are mixed about the noise of the computer drive. Some mention that the 18TB drives are very quiet, while others say that they are very noisy. Some say that the WD HDD's still make the same muffled pops and crackles that they did 12+ years ago, and that there was a noticeable clunk during a head seek. Some customers also say that there is a much louder start-up sound, and the drives rattling around in the HDD cage. Overall, the opinions are mixed, and it's recommended to read the reviews carefully before making a purchase.

    "...The WD Red Pros do make a much louder start up sound where you wonder if the drives are struggling to spin up, but after a couple minutes, it quiets..." Read more

    "TL;DR: Western Digital 20TB WD Red Pro: A whisper-quiet, storage powerhouse for home NAS systems, effortlessly reliable...." Read more

    "...In my Fractal case, the drive has so much torque that it rattles around in the HDD cage. Sounds like a woodpecker...." Read more

    "...The other drives just makes a weird repetitive noise and doesn't spin up. It's not recognized by windows. It's DOA (Dead On Arrival)!..." Read more

    15 customers mention7 positive8 negative

    Customers have mixed opinions about the packaging of the computer drive or storage. Some mention that the packaging was good and the product was delivered safely, while others say that the shipping was poor and the hard drive was defected.

    "...from Amazon, my only complaints were shipping time and lack of proper shipping as it took nearly two weeks and was in an unprotected UPS envelope...." Read more

    "...Product is safely delivered and works fine.As all HDDs do, 22TB means actually 20TB...." Read more

    "Item came not in original box , Item not working, HDD make metallic nose......" Read more

    "This was a used/like new unit from All4computers. It was packaged very securely and the drive was indeed like new...." Read more

    13 customers mention7 positive6 negative

    Customers are mixed about the warranty of the computer drive or storage. Some mention that the pro has a great warranty, while others say that they get an OEM product with no warranty.

    "Note the pro has a great warranty which is longer then the others. RMAd other WD drives that were not Pros and WD makes it so easy...." Read more

    "no instruction, no warranty papers, etc. now I am not sure if that item is new or a returned repackage item...." Read more

    "Great drives for the Synology NAS DS220+. Have a good warranty and are designed to be used with a NAS." Read more

    "...It is my conclusion that Western Digital warranties are worthless...." Read more

    12 customers mention0 positive12 negative

    Customers are dissatisfied with the display of the computer drive. They mention that the drive no longer shows up, and neither computer could recognize the drive. The system would not recognize the device, and the drives could not be registered.

    "...It's not recognized by windows. It's DOA (Dead On Arrival)!I checked which drive it was and it was the 2nd drive...." Read more

    "...for a few seconds, then it would go silent, and neither computer could recognize the drive...." Read more

    "...All four drives were bad. Two drives weren't recognized...." Read more

    "...The drive no longer shows up." Read more

    Reliable Performance and Trusted Quality: WD Red Pro NAS 14TB Internal Hard Drive
    5 Stars
    Reliable Performance and Trusted Quality: WD Red Pro NAS 14TB Internal Hard Drive
    I recently added the Western Digital 14TB WD Red Pro NAS Internal Hard Drive to my home NAS system, and it has proven to be a stellar addition to my storage setup. The drive lives up to the "Pro" in its name, providing reliable performance and ample storage capacity for my needs.First and foremost, the drive itself operates quietly, a feature that is appreciated in any home setup. While the housing I chose for the drive could use a bit of improvement, the internal workings of the WD Red Pro drive are where it truly shines. It seamlessly integrates into my NAS system, delivering consistent and efficient performance.Setting up a home NAS system with these drives was a breeze, even for someone with basic knowledge of storage systems. The user-friendly nature of the WD Red Pro series makes it accessible for those looking to establish emergency backups for crucial family information or simply expand their storage capabilities.Having opted for a total of 4 drives for my NAS, the storage capacity has proven more than sufficient for my data needs. The reliability and consistency of WD drives have been a constant in all my systems over the years, and the WD Red Pro series is no exception. It's a trusted brand that excels in the field of storage solutions.In conclusion, the Western Digital 14TB WD Red Pro NAS Internal Hard Drive is an excellent choice for anyone seeking a high-capacity, reliable storage solution. With the ease of setup and the brand's proven track record for quality products, it's a solid investment for both enthusiasts and those looking to secure their family's crucial information. I highly recommend WD Red Pro drives for anyone in need of professional-grade storage performance.
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    Top reviews from the United States

    Reviewed in the United States on January 20, 2024
    Capacity: 20TBVerified Purchase
    2 people found this helpful
    Report
    Reviewed in the United States on December 27, 2023
    Capacity: 14TBVerified Purchase
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    5.0 out of 5 stars Reliable Performance and Trusted Quality: WD Red Pro NAS 14TB Internal Hard Drive
    Reviewed in the United States on December 27, 2023
    I recently added the Western Digital 14TB WD Red Pro NAS Internal Hard Drive to my home NAS system, and it has proven to be a stellar addition to my storage setup. The drive lives up to the "Pro" in its name, providing reliable performance and ample storage capacity for my needs.

    First and foremost, the drive itself operates quietly, a feature that is appreciated in any home setup. While the housing I chose for the drive could use a bit of improvement, the internal workings of the WD Red Pro drive are where it truly shines. It seamlessly integrates into my NAS system, delivering consistent and efficient performance.

    Setting up a home NAS system with these drives was a breeze, even for someone with basic knowledge of storage systems. The user-friendly nature of the WD Red Pro series makes it accessible for those looking to establish emergency backups for crucial family information or simply expand their storage capabilities.

    Having opted for a total of 4 drives for my NAS, the storage capacity has proven more than sufficient for my data needs. The reliability and consistency of WD drives have been a constant in all my systems over the years, and the WD Red Pro series is no exception. It's a trusted brand that excels in the field of storage solutions.

    In conclusion, the Western Digital 14TB WD Red Pro NAS Internal Hard Drive is an excellent choice for anyone seeking a high-capacity, reliable storage solution. With the ease of setup and the brand's proven track record for quality products, it's a solid investment for both enthusiasts and those looking to secure their family's crucial information. I highly recommend WD Red Pro drives for anyone in need of professional-grade storage performance.
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    Customer image
    One person found this helpful
    Report
    Reviewed in the United States on February 6, 2024
    Capacity: 22TBVerified Purchase
    Reviewed in the United States on November 22, 2023
    Capacity: 14TBVerified Purchase
    4 people found this helpful
    Report
    Reviewed in the United States on August 20, 2023
    Capacity: 20TBVerified Purchase
    10 people found this helpful
    Report

    Top reviews from other countries

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    Jason WONG
    5.0 out of 5 stars Quiet and fast
    Reviewed in Canada on December 11, 2023
    Capacity: 22TBVerified Purchase
    Karla Colín
    4.0 out of 5 stars Buen producto aunque el empaque podría mejorar
    Reviewed in Mexico on November 3, 2023
    Capacity: 22TBVerified Purchase
    JP
    1.0 out of 5 stars Open package received - Not a new Drive it is used
    Reviewed in Canada on October 14, 2023
    Capacity: 10TBVerified Purchase
    Customer image
    JP
    1.0 out of 5 stars Open package received - Not a new Drive it is used
    Reviewed in Canada on October 14, 2023
    The website does not say that it is used open package unit. Would not have bought it if this was mentioned instead just saying "Warehouse deals".
    Feels deceived.
    Have to waste my time and return it now.
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    Amazon Customer
    5.0 out of 5 stars Grest Disk, really fast
    Reviewed in Canada on October 8, 2023
    Capacity: 20TBVerified Purchase
    John Lord
    5.0 out of 5 stars Good
    Reviewed in Canada on October 5, 2023
    Capacity: 18TBVerified Purchase