Western Digital 18TB WD Red Pro NAS Internal Hard Drive HDD 7200 RPM SATA 6Gb/s 3.5in WD181KFGX
WD Red Pro 3.5" SATA III Internal NAS Hard Drive, 18TB, 512MB Cache, Single
Hero image 0 of WD Red Pro 3.5" SATA III Internal NAS Hard Drive, 18TB, 512MB Cache, Single, 0 of 10

WD Red Pro 3.5" SATA III Internal NAS Hard Drive, 18TB, 512MB Cache, Single

41 ratings
Unrated

Key item features

  • Ample Storage: This internal 18TB hard drive is specifically designed for Network Attached Storage (NAS) systems, offering extensive capacity for significant data requirements.
  • Optimal Performance: It features a swift 7200 RPM spindle speed, a substantial 512MB buffer, and utilizes Conventional Magnetic Recording (CMR) for efficient data handling.
  • NAS Integration: With a 3.5-inch form factor and a SATA/600 interface, this drive is engineered for seamless integration into RAID-optimized NAS systems accommodating up to 24 bays.
  • Targeted Application: Designed for power users and medium-sized organizations, it supports archiving, sharing, and protecting rapidly growing amounts of critical data.
  • Durable Build: The drive features a shock-resistant design, measuring 1 inch height, 4 inches width, 5.8 inches length, and weighing approximately 1.52 pounds.
  • Green Compliance: This product is environmentally friendly, adhering to Restriction of Hazardous Substances (RoHS) compliance for responsible material usage.
Generated by AI

Specs

HD capacity, 18 TBHD type, Solid StateBrand, Western DigitalInternal/external, InternalInterface type, SATAHard drive form factor, 3.5

About this item

Product details

Why settle for less when you can have the Red Pro 3.5" SATA III Internal NAS Hard Drive, a top-tier enterprise-class storage solution designed to deliver unparalleled performance and reliability This hard drive, part of the esteemed WD Red Pro series, is specifically engineered to handle high-intensity workloads in 24x7 multi-user commercial and enterprise NAS environments. The WD Red Pro drives are the epitome of performance, scalability, and dependability, making them the go-to choice for businesses that need to store, share, and collaborate on large volumes of data in multibay RAID-optimized NAS systems. One of the standout features of the WD Red Pro drives is the exclusive NASware technology from Western Digital. This innovative technology fine-tunes drive parameters to match NAS system workloads, thereby enhancing performance and reliability. Designed for continuous operation, these hard drives can withstand the rigorous demands of high-intensity 24x7 multi-user NAS environments, thereby increasing system durability. Western Digital's commitment to quality and compatibility is evident in their extensive testing with a wide range of NAS system vendors. This ensures that the WD Red Pro drives are compatible with most NAS enclosures. Another noteworthy feature is the inclusion of Rotation Vibration (RV) sensors. These sensors anticipate and proactively counteract disturbances caused by increased vibration. By dispersing excess vibration across the drive chassis, turbulence is minimized, performance is maintained, and the drives are protected. The WD Red Pro hard drives also include a multi-axis shock sensor. This sensor detects subtle shock events and automatically compensates with dynamic fly height technology to further protect the drives in NAS enclosures. The WD Red Pro drives, available up to 22TB, feature Western Digital's proprietary OptiNAND technology. This industry-leading technology leverages integrated iNAND embedded flash to perform key housekeeping functions, freeing up more capacity and improving the overall drive performance. In conclusion, the Red Pro 3.5" SATA III Internal NAS Hard Drive is not just a storage device, but a testament to Western Digital's commitment to delivering high-performance, reliable, and compatible solutions for your NAS storage needs.
  • 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
  • Utilizes Western Digital's proprietary OptiNAND technology for improved drive performance and capacity
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.  

Specifications

HD capacity

18 TB

HD type

Solid State

Brand

Western Digital

Internal/external

Internal

Warranty

Warranty information

Limited Warranty period (parts): 1825 days Limited Warranty period (labor): 1825 days

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Warnings

Customer ratings & reviews

4.1 out of 5 stars
stars
41 ratings37 reviews
Includes global ratings and reviews
How item rating is calculated

Reviews summary

Pros

  • : Offers high capacity at lower cost.
  • : Made with durable and premium materials for a solid construction.
Generated by AI
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-3 of 37 reviews

May 9, 2026
Reviewer name: SinisterSwiss
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

Great high capacity

As described. So far so good! High capacity and best price I could find

Review from Western Digital
Helpful?3I4ZL2MZ2NQT428748258
Mar 1, 2026
Reviewer name: DJ Gene
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

Installed in UGreen NAS and working great.

So far so good. A little noisy but if that's what concerns you about a hard drive, I suggest a priority shift.

Review from Western Digital
Helpful?3I4ZL2MZ2NQT428748258
Feb 28, 2026
Reviewer name: Walmart customer
5 out of 5 stars
5 out of 5 stars review

Seller Verified Purchase

New deive

Installed in my NAS, runs great no issues . I will purchase more.

Review from Western Digital
Helpful?3I4ZL2MZ2NQT428748258
Current price is $754.99
Price when purchased online
  • Free shipping
  • Free Holiday returns until Jan 31
Walmart Protection Plan by Allstate

(Only one option can be selected at a time)

How do you want your item?

Try 30 days for just $1! Choose a plan at checkout.
How do you want your item?
Ships to
Arrives by Tue, Nov 17
|
Sold and shipped by Adorama
4.367184035476718 out of 5 stars
4.4 stars out of 5, based on 2255 seller reviews(4.4)
Extended holiday returns
Free Holiday returns until Jan 31

More seller options (7)

Starting from $943.28
walmart plus

Try 30 days of Walmart+ for just $1!

T&C apply.