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WD Red Pro WD122KFBX 12 TB
512 MB

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WD Red Pro WD122KFBX 12 TB
512 MB
Red5 year warranty
2 TB
64/7200 CMR
4 TB
5FFBX
4 TB
256/7200
6 TB
6001FFWX
6 TB
6002FFWX
6 TB
6005FFBX
8 TB
256/7200
10 TB
256/7200
10 TB
512/7200 CMR
12 TB
256 MB
12 TB
512 MB
14 TB
142KFGX
16 TB18 TB20 TB
285MB/s
22 TB24 TB26 TB
Main
Placementbuilt-in
TypeHDD
Featuresserver
Volume12 TB
Form factor3.5 "
ConnectionSATA3
Manufacturer's warranty5 years
Technical specs
Cache memory512 MB
Record technologyCMR
RPM7200 rpm
Data transfer rate267 MB/s
Operation power consumption8.8 W
Standby power consumption6.1 W
Reading noise level39 dB
Standby mode noise level34 dB
MTBF2 M h
MTBF (on/off)600 K
Features
Featuresfor video surveillance
General
Size147x102x26 mm
Weight750 g
Added to E-CatalogApril 2025
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
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512 MB

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Western Digital Red Pro internal hard drive 12 TB 7200 RPM 512 MB 3.5" Serial ATA III WD122KFBX

Enterprise-class hard drives engineered to deliver high performance and reliability to commercial and enterprise... moreNAS environments.   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 workloads1 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.   Optimized for NAS with NASware™ Western Digital’s exclusive NASware™ technology fine tunes drive parameters to match NAS system workloads which helps increase performance and reliability.   Designed for Continuous Operation WD Red Pro hard drives are designed to handle the rigorous demands of high-intensity 24x7 multi-user NAS environments and increase system durability.   Tested for Dependable Compatibility Western Digital partners with a wide range of NAS system vendors for extensive testing to ensure compatibility with most NAS enclosures.   Protected against Excessive Vibration WD Red Pro drives include Rotation Vibration (RV) sensors that anticipate and proactively counteract disturbances caused by increased vibration. By dispersing excess vibration across the drive chassis turbulence is minimized performance is maintained and drives are protected.   Built to Absorb Shock WD Red Pro hard drives include a multi-axis shock sensor to detect subtle shock events and automatically compensate with dynamic fly height technology to further protect the drives in NAS enclosures.   Engineered with Industry-Leading Technology WD Red Pro 22TB 24TB and 26TB hard drives feature Western Digital’s proprietary OptiNAND™ technology which leverages integrated iNAND embedded flash to perform key housekeeping functions freeing up more capacity and improving the overall drive performance.   Backed by World-Class Support and Warranty As an industry-leading hard drive manufacturer Western Digital stands behind their NAS storage solutions with the assurance of a 5-year limited warranty and world-class support services for hassle free data storage.   Desktop drives vs. WD Red® Pro It is important to choose a drive purpose-built for RAID-optimized NAS systems to ensure optimum performance and preserve your valuable data. Take the following into consideration when choosing a hard drive for your NAS: - Compatibility: Unlike desktop drives WD Red Pro hard drives are specifically
Quzo.co.uk
Delivery: to United Kingdom
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£411.95
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WD WD 12TB Red Pro 7200rpm HDD 512MB Cache Internal NAS Hard Drive (WD122KFBX) WD122KFBX

Built for NAS systems, the WD Red Pro 12TB Internal NAS Hard Drive is optimised for all your high-intensity workloads. The 12... moreTB capacity and max data transfer rates of 267MB/s provide ample room for both you and your colleagues to quickly share and back up any precious work files into your NAS device. The 3.5’’ form factor means this NAS HDD can easily fit into most standard 24-bay NAS systems. Plus, compatibility with NASware 3.0 technology facilitates optimum performance whilst experiencing heavy loads along with extensive data protection. WD Red Pro 12TB Internal NAS Hard Drive at a Glance: Designed for NAS systems 12TB capacity 7200 RPM 512MB cache SATA III connectivity – max data transfer rate of 267MB/s Exclusive NASware 3.0 technology Optimised for Business Use The WD Red Pro 12TB Internal NAS Hard Drive comes equipped with everything you need to streamline your business. With 12TB of storage space, there’s ample room for both your and your employee's files and projects, which can be quickly accessed whenever necessary thanks to the 267MB/s data transfer rates. The 512MB internal cache improves overall performance, storing any of your more frequently used files for rapid access, and reducing the number of writes and reads to the main storage. To ensure the WD Red Pro 12TB Internal NAS Hard Drive can handle all your high-intensity workloads, it features onboard NASware 3.0 technology. This NAS HDD has been optimised for peak performance and reliability, along with robust data protection. The 3.5’’ form factor means this drive will seamlessly fit into a range of 24-bay NAS devices and features a multi-axis shock sensor that automatically detects any shock events. Once it does, dynamic flight technology adjusts each read and write function to protect your precious data for incredible long-lasting reliability. What’s more, 3D Active Balance Plus ensures this HDD remains perfectly balanced within your NAS device, reducing excess vibration and noise and enhancing the overall lifespan of your hard drive. The WD Red Pro 12TB Internal NAS Hard Drive has a max speed of 72000 RPM but features extended thermal cycle burn-in to prevent unwanted excess heat from damaging the drive. Specification: - Capacity: 12TB - Interface: SATA 6 Gb/s - Transfer Rate: up to 267MB/s - Rotational Speed: 7200 RPM (nominal) - Buffer Size: 512 MB - Buffer To Host (Serial ATA): 6 Gb/s (Max) - Form Factor: 3.5-Inch - Endurance (TBW): 550TB/Year - Warranty: 3-Year Limited Warranty - Operating Temperature: 0°C to 65°C - Non-Operating Temperature: -40°C to 70°C - Certifications: BSMI, ICES-003/NMB-003, CE, FCC, KC, Maghreb, RCM, UKCA, VCCI, CB-Scheme, TUV, UL - Packaging: OEM
Overclockers.co.uk
Delivery: to United Kingdom
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£449.99
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Western Digital WD122KFBX internal hard drive 12 TB 7200 RPM 512 MB 3.5" Serial ATA III

WesternDigitalWD122KFBXinternalharddrive12TB7200RPM512MB3.5"SerialATAIII
OnBuy.com
Delivery: in United Kingdom
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£503.90
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Western Digital Red Pro internal hard drive 12 TB 7200 RPM 512 MB 3.5&

Western Digital Red Pro internal hard drive 12 TB 7200 RPM 512 MB 3.5" Serial ATA III Enterprise-class hard drives engineered... moreto deliver high performance and reliability to commercial and enterprise NAS environments.WD Red® Pro drives are engineered to handle high-intensity workloads in 24×7 multi-user commercial and enterprise NAS environments. WD Red Pro drives deliver the performance. scalability and dependability businesses require to store. share and collaborate on large amounts of data in multi-bay RAID-optimized NAS systems.Optimized for NAS with NASware™Western Digital’s exclusive NASware™ technology fine tunes drive parameters to match NAS system workloads. which helps increase performance and reliability.Designed for Continuous OperationWD Red Pro hard drives are designed to handle the rigorous demands of high-intensity 24x7 multi-user NAS environments and increase system durability.Tested for Dependable CompatibilityWestern Digital partners with a wide range of NAS system vendors for extensive testing to ensure compatibility with most NAS enclosures.Protected against Excessive VibrationWD Red Pro drives include Rotation Vibration (RV) sensors that anticipate and proactively counteract disturbances caused by increased vibration. By dispersing excess vibration across the drive chassis. turbulence is minimized. performance is maintained and drives are protected.Built to Absorb ShockWD Red Pro hard drives include a multi-axis shock sensor to detect subtle shock events and automatically compensate with dynamic fly height technology to further protect the drives in NAS enclosures.Engineered with Industry-Leading TechnologyWD Red Pro 22TB and 24TB hard drives feature Western Digital’s proprietary OptiNAND™ technology which leverages integrated iNAND embedded flash to perform key housekeeping functions. freeing up more capacity and improving the overall drive performance.Backed by World-Class Support and WarrantyAs an industry-leading hard drive manufacturer. Western Digital stands behind their NAS storage solutions with the assurance of a 5-year limited warranty and world-class support services for hassle free data storage.
Pcnova.co.uk
Delivery: in United Kingdom
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£569.82
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Western Digital Red Pro internal hard drive 12 TB 7200 RPM 512 MB 3.5& WD122KFBX

Western Digital Red Pro internal hard drive 12 TB 7200 RPM 512 MB 3.5" Serial ATA III
LaptopHub.uk
Delivery: in United Kingdom
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£571.40
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Series WD Red (NAS)Compare using chart →
Model overview based on user reviews  
The WD Red Pro series offers a range of capacities, including 6TB and 8TB options, known for their best-in-class speed. However, users have noted that these drives can become quite hot, with temperatures reaching up to 55 degrees in NAS systems, and they can be noisy, producing a noticeable buzz or crackling sound. This noise level, around 37 dB, might be disruptive for home use, especially if placed near sleeping areas. Despite these drawbacks, the drives are appreciated for their performance, and some users have observed improvements in newer models, possibly due to firmware updates. Overall, the WD Red Pro is a solid choice for those prioritizing speed and capacity, provided the noise and heat are manageable in their setup.
Pros

Cons

User reviews 3
Write Review →
good model, liked it.
15 October 2017 
If a noise level of 37 dB is not critical, and good airflow because the best among 6TB does not exist yet. There are 3 HDDs of 6TB released in March 2017 - they show a heating of 53-55 degrees, a few days ago I bought another one made in May 2017 with a sensor heating up to 48 degrees, what is this - probably they changed the firmware??
The main thing is the speed of work - best in class 6 TB
Strong heating, in NAS Asustor 6210T up to 55 degrees; Under heavy load, it's somewhat noisy for home use - it buzzes loudly
use WD Red Pro month or more
Discuss
 Show Original
The disc is not bad, but only for use where its noise won't be a disturbance.
16 August 2025 
Purchased the WD4003FFBX at the beginning of the year in a used condition with minimal operating hours. It performs well in operation. Compared to the Toshiba x300 4Tb, the Toshiba vibrates more, but during read-write moments, the knocking from the WD is unpleasant, which subjectively feels even worse than the Toshiba.
CMR, support for different sector sizes (i.e., the disk is converted to 4kn)
Noisier during intensive work moments than the Toshiba X300
Volodimir: use WD WD4003FFBX few months
Discuss
 Show Original
Very noisy - crackling
5 June 2021 
The 8TB drive is very noisy. It crackles during use. If you are buying it for a home NAS, place it somewhere away from where someone sleeps.
Volume
Noise
MrG0d: use WD WD8003FFBX less than month
Discuss
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WD Red Pro WD122KFBX configurations

Price for WD Red Pro WD122KFBX
WD Red Pro WD2002FFSX 2 TB
64/7200 CMR
from £215.352 offers
WD Red Pro WD4005FFBX 4 TB
5FFBX
from £226.9212 offers
WD Red Pro WD4003FFBX 4 TB
256/7200
from £245.003 offers
WD Red Pro WD6001FFWX 6 TB
6001FFWX
from £286.961 offer
WD Red Pro WD6002FFWX 6 TB
6002FFWX
from £241.573 offers
WD Red Pro WD6005FFBX 6 TB
6005FFBX
from £209.9414 offers
WD Red Pro WD8003FFBX 8 TB
256/7200
from £259.9917 offers
WD Red Pro WD101KFBX 10 TB
256/7200
from £268.001 offer
WD Red Pro WD103KFBX 10 TB
512/7200 CMR
from £377.1211 offers
WD Red Pro WD121KFBX 12 TB
256 MB
from £645.001 offer
WD Red Pro WD122KFBX 12 TB
512 MB
from £411.9511 offers
WD Red Pro WD142KFGX 14 TB
142KFGX
from £553.957 offers
WD Red Pro WD161KFGX 16 TBfrom £599.9912 offers
WD Red Pro WD181KFGX 18 TBfrom £639.366 offers
WD Red Pro WD202KFGX 20 TB
285MB/s
from £959.999 offers
WD Red Pro WD221KFGX 22 TBfrom £764.9913 offers
WD Red Pro WD240KFGX 24 TBfrom £829.9914 offers
WD Red Pro WD260KFGX 26 TBfrom £1,002.716 offers
Video reviews
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Hard Drive (HDD) WD WD122KFBX