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Western Digital 18TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5' - WD181KFGX

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$379.99

$ 99 .00 $99.00

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About this item

  • Capacity: 18 TB, providing ample space for storing large amounts of data in commercial and enterprise NAS environments
  • Cache Size: 512MB, allowing for faster data access and improved performance
  • Transfer Rate: up to 285 MB/s, ensuring quick and efficient data transfer
  • Form Factor: 3.5-inch, designed for use in multi-bay RAID-optimized NAS systems


The Western Digital WD181KFGX NAS Hard Drive is a high-performance, reliable storage solution for commercial and enterprise NAS environments. With a generous 18TB capacity, this mechanical hard disk is optimized for high-intensity workloads in 24/7 multi-user settings. It boasts a read speed of 285 megabytes per second and a data transfer rate of up to 285 megabytes per second, ensuring quick and efficient data transfers. The 512MB cache memory and 7200 rpm rotational speed further enhance its performance. This 3.5-inch internal hard drive is NAS-optimized, RAID-optimized, and compatible with a variety of NAS devices. It comes with a 5-Year Limited Warranty, offering peace of mind for your storage needs.


Der Techniker
Reviewed in Germany on January 17, 2025
Schnelle Lieferung nichts zu beanstanden
David W
Reviewed in the United States on August 5, 2024
4k heaven baby. 4k video filed my old drive quickly. I have the capability and capacity to store 8k for a while. Massive space.
Bob
Reviewed in the United Kingdom on July 3, 2024
If NVMe speed is not the driving factor rather a reliable backup is then these are a good alternative I run 2 of these in a RAID 0 set giving me 32TB of backup space and they are very good, Performance is surprisingly fast and as its just two disks after 4 years I'll mothball these as a backup of that day and pop in two new ones (in 4 years time that's more likely to be SSD). Today though with an inexpensive Enclosure its an inexpensive and reliable backup solution when you need high volume backups. I use these as a fast tertiary backup so Raid 0 is fine. I would never recommend Raid 0 as your only backup option.
Lori T
Reviewed in the United States on July 16, 2024
I put this in my synology NAS. It has worked flawlessly so far.
J. Laing
Reviewed in the United States on December 19, 2024
I’ve purchased six of these this year and they’re all running fine with no problems whatsoever. The CMR drives perform better than the (deceptively mislabeled) SMR drives they replaced. I believe these are not helium filled, so they should last longer than the higher-capacity drives that are. I like the five-year warranty on the Red Pro drives, so I’ve been buying lots of them for the past decade or so. There has been some odd price fluctuation with these, with them starting out below $300 each, and rising sharply through the year. Normally, IT products decline in price over time, so I can only assume that this was caused by high demand.
Gene Olson
Reviewed in the United States on October 14, 2024
Very pleased with these drives.I am running these in an XFS raidz configuration. They are nearly silent, but make a little noise when seeking and a distintive clunk on power off. Transfer rate is 250 MB/s on the outer tracks.So far so good. The drive gets excellent ratings, and the warranty is excellent.
Chipster
Reviewed in the United States on July 22, 2023
I like this drive but I installed it on a computer under warranty that has had 4 mother boards replaced, then memory replaced which was defective, and now the video card is defective. This drive worked great and I have no criticisms of it. I've removed it from my defective computer to insure that no data is lost (even though I have multiple back-ups because I have lost data before). This is a great drive for the money.
Dale in Tennessee
Reviewed in the United States on May 29, 2023
I have some WD drives from 2009 that are still running (WD Cavier Black) with little to no bad sectors. Other drives I have since 2016 are performing similarly.This unit has better performance characteristics due to the cache size. If it last as well as my previous units, I will be very happy with the purchase.
Christopher J. Harding
Reviewed in the United States on October 9, 2023
These are great drives. I bought 2 of them on Prime Day. Amazon initially shipped me the wrong drives, but they made it right.These drives have been in use for a few months with no issues. No complaints about the performance.Beware that they are noisy. It's not such a big deal for me since these drives are installed in a server in my basement where noise is less of a concern, but I would not want them in my desktop PC or in a device that is located in an office, bedroom, or common room. They click like drives from the 90s.The price of these is always fluctuating, but I was able to get them for about $14/TB. At that price, I would buy more of them.
Michael T.
Reviewed in Singapore on June 18, 2022
I enjoyed the low price of the product compared to buying from retail shops. However I was not aware that they are US stock and will not be eligible for warranty (RMA) in Singapore. This was confirmed after registering the proudct on the WD website. This is super disappointing.
Kopernikus
Reviewed in the United States on November 8, 2022
I bought two of WD Red PRO 18TB in October when they were on sale to replace the current disks in my Home Backup NAS. I bought 2 because I need two identical drives for the NAS.Disk 1 arrived a few days later and disk 2 arrived a few days later. And now the problems begun:Disk 2 which was sent to me wasn't an 18TB drive, it was only 6TB! A harmless mistake? Fraud? Who knows... Very annoying anyways...Now I tried to get disk 2 exchanged, but Amazon could only offer a refund, because the drives were out of stock with unknown restock date. Too bad because I didn't want a refund, since I got the drives for a good price and now they were more than 25% more expensive...So I had to wait about 3 weeks for the disk to be back in stock and be able to have it exchanged instead of just getting a refund.Today the exchanged drive finally arrived. This time it was as ordered 18TB. I installed both drives in my NAS. One drive was GOOD the other was recognized as BAD during the drive self test. The temperature reading was off and caused a S.M.A.R.T error. In fact there was no temperature reading at all for 1 drive. So I let the drive warm up for a few hours and tried it again. Same thing. SMART could no be read and there was no temperature shown for 1 of the 2 drives.I took both drives out of the NAS and tried to see what's going on by installing them in a Windows PC.One drive is fine. SMART is OK. No errors.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)!I checked which drive it was and it was the 2nd drive. The one I received as replacement today! So after the long wait and the whole odyssey of exchanging the drive the drive arrived DOA.Was it bad luck? Maybe.Do I trust these drives? No, not anymore. Never had a drive DOA.This was by far my worst experience buying Western Digital drives on Amazon! And I have quite a lot of them (in total probably about 16 different WD Elements and MyBooks).Since these 2 drives were supposed to be used in a NAS which should hold the backups of my personal and work PCs I thought I'd buy the more expensive "real" WD Red Pro drives, which are designed for 24/7 operation, but what did I get? Just a way too long frustrating experience overall.Maybe I was just unlucky in this case, but I never had a problem with a shucked drive. So back to shucking external drives...I CANNOT recommend the WD Red Pro 18TB drives at this point.PS: the HDD came in the original Western Digital box which then was packed in one of the thin Amazon air bubble envelopes. Maybe it's an issue that the drives aren't shipped better protected? Not sure. The delivery driver dropped it off quite carefully, though. No idea what happened to the drive in between...
Ivan Martinez
Reviewed in Mexico on August 10, 2021
Lo compré porque confiaba en la marca, pero simplemente no funcionó mi Synology no lo reconoció, intenté en Windows y tampoco, además de que la forma en como venía envuelto es pésima.
Tino LPZ
Reviewed in Germany on December 18, 2021
bei Benutzung permanentes lautes metallisches klappern wie man es von den ersten Festplatten von WD vor 20 Jahren noch kennt, lauter als der restliche PC, würde ich nicht wieder kaufen
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