Seagate IronWolf Pro, 4 TB, Enterprise NAS Internal HDD –CMR 3.5 Inch, SATA 6 Gb/s, 7,200 RPM, 256 MB Cache for RAID Network Attached Storage, 3 year Rescue Services (ST4000NT001)

I've been using the IronWolfs and Pros for a number of years now and would highly recommend. They are rock solid and good performers. Super trustworthy and great price for this capacity. They run pretty quiet and cool.

I ordered a new 4TB NAS drive from this seller, for my Server which needed some more storage, and the drive came in pristine condition and no issues. Happy customer

Purchased three specifically for a NAS unit. They are plug and play, work as expected. One driver developed a fault pretty early on. It started making grinding noises and after a couple of days died completely. Amazon were very good and sent me a replacement straight away. Before I returned it I also checked the serial number on Seagate website which indicated that the drive was under warranty so that would have been another option if Amazon hadn't replaced it. Edit: Three months later and 2 of the 3 drives have failed. The first one was replaced by Amazon with overnight shipping - top notch customer service as always. The second one unfortunately was outside the 30 day window and I was referred to the manufacturer Seagate. They were happy to accept it for replacement however they refused to cover shipping costs and I had to pay to return it to Seagate. They also would not dispatch a replacement device to me until they received the faulty one so I was left without a running drive. I eventually received a replacement approximately 7 days later which was NOT a brand new device but in fact a refurbished device! Absolutely appalling customer service. I don't know whether other manufacturers are any better but I will not be taking a chance with Seagate again.

Needed a new hard drive for my brothers pc and I've had no problems with it. Good stuffs

Delivery was prompt and arrived, exactly as expected. Purchased this external hard drive to use in my recently purchased Synology NAS to store photos and videos on. It was very simple to install and set up, even for a tech novice like me. So far, has proved reliable and quick. Plus, the 12tb is more than enough storage to last me for now. NAS is a 2 Bay drive so I will be purchasing a second as a backup drive to this original. Will probably wait till it's on offer though to ensure I get the best value.

Seagate are a good brand, this drive relaced a failing drive. All my past hdd's have lasted well, using pc's since the 90's most of the drives were seagate. WD also are also a good choice. the price of this drive had gone down in price, hence the Seagate. As for the seller estimate in a week, turned into next day delivery, so 5 stars for that.

My 2TB Western Digital Red drive started having issues in my Synology Diskstation after running constantly for the last 11 years. I was pretty happy with how the WD Red had performed, so I was going to buy the same again, but in a bigger capacity. However, after reading a few reviews, it became apparent to me that WD were now cutting costs by using SMR technolgy in their drives, basically making them unsuitable for NAS use. Hence my purchase of this Seagate Ironwolf 4TB drive. I went for the basic Ironwolf model, as despite it being slower than the other slightly more expensive Ironwolf models, the slowness also means a slower spin speed & in theory, a quieter disk. My NAS box is located under the TV in my lounge, so I would not appreciate any high pitched whistling being emitted from the disk. I can confirm that my disk is silent in use & is actually quieter than the WD disk it replaced.

One of my Synology NAS devices recently reported a degraded volume due to one of the two failing Seagate hard drives. After much deliberation between WD and Seagate (reading countless reviews and statistics) I decided to stick with Seagate again. The NAS has been running continuously with a pair of standard internal Seagate PC drives (not NAS designated drives) since ordered here on amazon back in Feb 2013. 6 years of continuous Synology operation serving files on my network and recording a surveillance camera feed, bearing in mind these are not NAS designated drives. That was good enough for me. Moreover, the price of the Seagate was better than WD. I received the new drive in minimal cardboard packaging, no bubble wrap - just the usual box-in-box with amazon paper cushioning - so I was a little concerned about potential drops and knocks. Plugged the drive into my PC and began thorough drive tests using Seagate's SeaTools software, ensuring a full surface scan was done. All checks passed without any problems. I checked the drive's SMART attributes and was concerned with some of the RAW data for Read Error Rate and Reallocated Sectors count. Turns out (after a little research) Seagate implements its own HEX raw values to allow them to record both read counts and error counts. In summary, no error, no reallocated sectors for my drive. I have now run the drive in my PC for a few weeks before placing it into my NAS, so far so good. Ran a few benchmark tests using CrystalDiskMark. Results attached (image). Would recommend.

No complaints.

Got my drives verified from segate, no problem

C'est arrivé bien emballé contre les chocs, surtout livré en avance 😄. Ils tournent H24 et 7/7 dans mon NAS depuis, ayant l'habitude des disques durs Seagate je ne suis pas déçu pour le moment.

I am giving for stars mostly for the support I got from Amazon customer service regarding my order. I bought two 12TB drives on the 23rd nov during the sale period. I got them on the 15th Dec. I was traveling during that time, but when I got home, I installed them right away in my brand new NAS. Unfortunately only one worked without a problem. The other one was spinning but was not loading and reading nothing. I tried to put in intro a PC and also a 3.5 sata adapter and connected to a laptop. The same problem-it wasn't readable. Luckly amazon customer service undarstood the problem and gave me a refund. I bought a WD drives this time.

Drive is great. Don't understand why it took 10 days to arrive. I ordered two others and received them 2 days later!