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Seagate IronWolf 4TB NAS Hard Drive, 3.5 inch, 5900RPM, 64MB Cache, CMR

CCL Code: HDD2842
Manufacturer Code: ST4000VN008
| Manufacturer: Seagate
  • Seagate IronWolf 4TB NAS Hard Drive, 3.5 inch, 5900RPM, 64MB Cache, CMR
  • Seagate IronWolf 4TB NAS Hard Drive, 3.5 inch, 5900RPM, 64MB Cache, CMR
  • Seagate IronWolf 4TB NAS Hard Drive, 3.5 inch, 5900RPM, 64MB Cache, CMR
  • Seagate IronWolf 4TB NAS Hard Drive, 3.5 inch, 5900RPM, 64MB Cache, CMR
  • Seagate IronWolf 4TB NAS Hard Drive, 3.5 inch, 5900RPM, 64MB Cache, CMR

Key Features:

180TB Annual Work Rate, IronWolf Health Management (IHM), Rotational Vibration (RV) sensors, Includes 3 Years Rescue Data Recovery, 3 Year Warranty

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Tough. Ready. Scalable.

Seagate’s latest Ironwolf NAS drives offer industry leading quality at great prices. Bring new life to your network attached storage and unleash the full potential of your data. Designed to be always on and always working, Ironwolf is further enhanced with AgileArray™ technology for increased system agility and reliability.

Built into every IronWolf NAS drive is Seagate’s own innovative AgileArray™ technology which enables dual-plane balancing and complete RAID optimisation in environments supporting multiple bays. This is an essential ingredient for multi-user environments which demand 24x7 accessibility and snappy, reliable performance.


IronWolf Health Management

As with any network storage set-up, reliability is needed. The IronWolf excels in this, using their own Health Management system, Seagate have given you the tools to monitor and manage your drive constantly. Focusing on preventing loss of data and recovery this pushes the boundaries of securing your data.

You can also set the drive to notify you if any errors are flagged up in the system with the DiskStation Manager 6.1 included in the software package. This attention to detail is why Seagate are the pinnacle of NAS storage and why the IronWolf will be perfect for you to boost your work rate. Seagate have maximised the potential when in a RAID configuration with Error Recovery Control that redefines responsiveness and combat lag to give a quick, clean user experience where required.


Multi-Bay and NAS-Ready With Built-In RV Sensor

Safeguarding against any kind of loss of data is paramount to Seagate and their RV sensors add another layer of security to the drive. Rotational Vibration sensors manage multi-bay vibration and long term degradation to allow the drive to maintain a consistent performance over a long period of use.


The IronWolf can be completely operational 24/7 in terms of accessing data and can handle a workload of around 180TB per year, making it just as proficient when handling hours of movies for your home cinema, or sensitive documents at work. The Ironwolf has a 3 year warranty and is available in sizes 1TB, 2TB, 3TB, 4TB, 6TB, 8TB, 10TB and 12TB



Main Features

  • Seagate IronWolf NAS 3.5 inch Internal Hard Drive
  • 4TB Storage
  • Interface: SATA 6Gb/s
  • 5900 RPM spindle speed
  • 64MB cache buffer
  • Number of Drive Bays Supported: 1 to 8
  • Dual-Plane Balance
  • Error Recovery Control
  • Enables user workload rate of 180TB/year
  • Designed for always on, always accessible 24x7 performance

Hard Disk

Disk Capacity 4000 GB
Drive Capacity 4000 GB
Disk Size 3.5 Inches
Drive Size 3.5 Inches
Disk Speed 5900RPM
Interface SATA 6Gb/s
Drive Interface SATA III
Data Buffer/RAM 64 MB
Bytes per Sector 512
Compatibility 1- to 8-bay network attached storage (NAS), Desktop RAID and servers, Multimedia server storage, Private cloud


Average Latency 4.16 ms
Data Transfer Rates Up to 600 MB/s
Mean Time Between Failure (MTBF) 1000000 Hours


Power Requirement Spin Up (Max) 4.8 Watts
Power Requirement Idle (Ready) 3.95 Watts


Operating Temperature 0 to 70 °C
Non Operating Temperature -40 to 70 °C
Relative Humidity 5 to 90 %
Shock (Non Operating) 300Gs for 2ms
Acoustics (Seek Mode) 2.5 dB
Acoustics (Idle Mode) 2.3 dB
Altitude (Operating) -304.8 to 3048 m
Altitude (Non-Operating) -304.8 to 12,192 m
Temperature Gradient 20 °C per hour


Form Factor Hard Disk Drive
Enclosure type Internal
Colour Silver
Pack Quantity 1
Width 10.19 cm
Depth 14.7 cm
Height 2.61 cm
Weight 0.61 kg
Barcode 0763649097885


ISPC Code 40363


Warranty 3 Years

Key Features

Interface Type SATA III
Main Colour Silver
Cache Memory 64 MB
Disk Form Factor 3.5
Interface Type SATA III
Condition New
HDD Purpose NAS
Recording Technology CMR
Power Requirement (auto) 10 W
Number of SATA power required 1



Item Details

Manufacturer Seagate
Manufacturer Code ST4000VN008
EAN 8719706003278
UPC 763649110560
Condition New

Warranty Information

Warranty 3 Years

Manufacturer Information

Manufacturer Seagate
Manufacturer Code ST4000VN008
Questions and Answers

Do you have you a question about the Seagate IronWolf 4TB NAS Hard Drive, 3.5 inch, 5900RPM, 64MB Cache, CMR?

Q: The bullet points say the warranty is three years, the specifications say the warranty is five years. Which is it?
Answer by Website User on 27th September 2017
Ironwolf drives are provided with 3 years warranty, Ironwolf Pro drives have a 5 Year warranty. -Jakef
1 customer found this answer helpful.
Post Answer
4.9 / 5 36 reviews

Mr George T. Smith

last month

I used to always use Western Digital Red NAS drives, but they have been using SMR technology on their low and mid-range NAS drives. You only get the superior CMR technology on their high-end 'Pro' drives now, and they also cost a small fortune. Seagate are using CMR technology on their standard Iron Wolf NAS drives and they also cost less, especially if you shop around. My last 10x NAS hard drive purchases have all been Seagate Iron Wolf drives and I am extremely happy with them.

Stuart McPherson

3 months ago

Bought to replace a failed WD drive in a Synology NAS. No problems installing and now working perfectly. Excellent service from CCL at the best price I could find.


3 months ago

Works wonderfully in my server.


4 months ago

Great drives at a great price. Very Happy with my purchase. CCL computers were great and the order actually arrived a day earlier than expected as DPD delivered on a Sunday.

Phillip Edney

5 months ago


Mr Peter Riley

6 months ago

A great piece of kit at a good price fitted to my Synology NAS as the old drives had given up the ghost, Synology NAS recognised them straight away, no problems there, delivery was fast and came well packaged, thank you CCL for a trouble-free purchase would recommend them as the first port of call for Computer repairs and spares if you're looking for a full-blown system at a good price give them a call, I don't think you'll be disappointed.


6 months ago

Good quality product.

Gary B - Cupar, Fife

6 months ago

Fast delivery, well packaged & as described. No VAT receipt, or any type of receipt, only order confirmation, or would have been 5 star.

Robert Hay

7 months ago

Ordered Friday 04/03/22 at 10:04am, arrived by Royal Mail on Saturday 05/02/22 before 12pm thank you CCL & Royal Mail. Paid a little extra over a global online retailer, being put off them for computer components as Ive had a retail boxed HDD from them in the past which had some shoddy outer packaging. Also their recent reviews for HDDs showed its a bit of a lottery as to how they package their HDDs for shipping. Some customers receiving very poorly packaged drives, dented and broken. My Seagate Iron Wolf 4TB arrived in its sealed anti-static bag, inside a thick tubular bubble rap envelope, inside a double thick, snug fitting cardboard box with a grey courier pouch bound tight outer layer. Installed and working perfectly as anticipated. A further 4 weeks later and drive working just fine. I had thought this would be replacing a 4 year old 3TB Western Digital WD30EZRZ (CMR) as my main backup drive in my gaming PC as I was getting errors on that while doing drive image backups. Long story short, the WD drive subsequently proved not to be the culprit (memory/mobo) so I did not really need this new drive. It's quick and quiet enough while still using CMR (not that problematical shingle / SMR) recording method along with other tech alluding to reliability. It has a reasonable 3 year warranty and additional rescue / data recovery service - wouldn't expect to use it but it might show Seagate has some faith in their product. Happy so far.

Joe Simpson

11 months ago

Works perfectly in my Synology NAS and has plenty of space for all of my files.

Andrew Smith

11 months ago

Works well, not had a problem with it, seems quite fast.


August 2021

I've had many of these drives and all but a couple have worked flawlessly for years, would definitely recommend.... also, would recommend CCL Computers, fast efficient service and very competitively priced!


February 2021

Disk go good

Tim Howell

February 2021

Great price and speedy delivery! I will be back...


February 2021

This is working perfectly in my NAS and it is much quicker than the previous HDD. I am getting a write speed of about 80Mb/sec. Easy to install and the NAS does regular tests on the drive.

Mr Harris - Customer

January 2021

Very Happy. Would recommend this company.


January 2021

Though it has been a while since purchase, I bought 5x4TB Ironwolf drives and all are running fine apart from 2x4TB drives have started clicking heavily and although they still seem to work in my RAID 5 array, I may have to RMA two of them. I'm still extremely pleased with my purchase and I would buy them again. Thanks

Richard Tang

December 2020

The Seagate nas drive is a reliable product anyway so only the price point distinguishes sellers. This particular seller has it a couple of cheaper and also packaged very VERY well for delivery.


August 2020

A good quality hdd


June 2020

Thanks to CCL Computers I now have my F5 NAS populated with awesome Ironwolf drives. Best packaging I've seen in a long time, Hard drives correctly packaged and protected for deliveries, thanks for that extra touch! Until My Next Order, Keep Safe!


April 2020

The drive is everything I wanted it to be. It's fast and quiet. Delivery was fautless too.

Chris W

March 2020

Great service and price. Hard drives are notoriously easy to damage, the packaging provided by CCL was excellent and the drives in perfect condition with no errors. Thank you CCL.

Howard Bott

February 2020

So far, so good. Used this in Synology media server.

Han L

January 2020

Ordered a hard disk for my NAS, and I am happy with the purchase. Sometimes stores don't protect disks well enough, which wasn't the case. Delivery was within the time framed as well.

Ian Chetwynd

December 2019

Good value I only use Seagate hard drives with my two Nas Drives.

Bill Morrison

December 2019

Guys at CCL were fantastic. Very easy to order online and excellent delivery time. Product works perfectly too. What's not to like

Mr Ross Olney

August 2019

Excellent build and reliable NAS hard drive.


August 2019

Great value drives for my Synology NAS. No louder than the others they replaced - you can hear them when in use. Performance wise, they don't seem much different to the 7200rpm, but smaller desktop drives previously installed.

Ken Starnes

June 2019

Bought 2 for the Synology DiskStation DS218j NAS. So far so good but as it's only been a month since purchase.Only time will tell.

Keith Ware

June 2019

Bought to use with a Synology NAS. Great product. High quality.

Mr Zipf

April 2019

Item arrived well packaged against damage and was straightforward to install and setup. Hoping for several years use.


March 2019

These were fitted easily into a Synology NAS drive. I have not used these 2 drives much but they appear to be quick and quiet and one day I look forward to using them to their true potential.


January 2019

Already tried 2 of these in my Synology NAS so after a couple of months I've replaced the other 2 drives as well. These are quieter and less vibration than the WD REDs I originally had installed. Excellent drives and good service from CCL.


November 2018

Very well packaged, lots of air bags. Drives perfect for my Nas setup. Quick delivery and option to pickup from my local collection point.


October 2018

As expected, arrived quickly, packed well against rough handling of couriers,


October 2018

Used to upgrade 2 drives in a Synology NAS. Working just fine, quiet, fast and will upgrade the other 2 drives at some point. I chose Seagate because another one of the original Western Digital Red drives began showing errors while in warranty. Returned to WD and replaced but used it elsewhere.

Seagate IronWolf 4TB NAS Hard Drive, 3.5 inch, 5900RPM, 64MB Cache, CMR


CCL Code: HDD2842

Sold out

Sorry, we don't have any stock of this product. Please click 'Notify Me' and we will let you know when the item is available.

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