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Seagate IronWolf Pro 4TB NAS Hard Drive, 3.5 inch, 7200RPM, 256MB Cache, CMR

Seagate IronWolf Pro 4TB NAS Hard Drive, 3.5 inch, 7200RPM, 256MB Cache, CMR

CCL Code: HDD3582

Was £129.14

SAVE £21

Now only

£107.99 inc VAT

  • Seagate IronWolf Pro 4TB NAS Hard Drive, 3.5 inch, 7200RPM, 256MB Cache, CMR
  • Seagate IronWolf Pro 4TB NAS Hard Drive, 3.5 inch, 7200RPM, 256MB Cache, CMR
  • Seagate IronWolf Pro 4TB NAS Hard Drive, 3.5 inch, 7200RPM, 256MB Cache, CMR

Register in the first 60 days for 2 years FREE Data Recovery!

Seagate IronWolf Pro 4TB NAS Hard Drive, 3.5 inch, 7200RPM, 256MB Cache, CMR


Was £129.14

SAVE £21

Now only

£107.99 inc VAT

Available for delivery from Wednesday 31st May

10+ In Stock Now

Buying in bulk? Contact our business team.

Key Features:

300TB Annual Work Rate, IronWolf Health Management (IHM), Rotational Vibration (RV) sensors, Include 3 Years Rescue Data Recovery, 5 Year Warranty

CCL Code: HDD3582



Tough. Ready. Scalable.

For everything NAS, there’s IronWolf and IronWolf Pro. Always on and always working, IronWolf is enhanced with AgileArray technology for optimal reliability and system agility. Multi-user technology and extreme workload rates allow IronWolf to perform and scale up with your enterprise.

IronWolf + the Power of AgileArray

  • NAS-optimised hard drive for the best-possible user experience
  • IronWolf Health Management in Synology NAS* continuously helps to safeguard the health of your data
  • Drive balance with Rotational Vibration (RV) sensors manage multi-bay vibration for long-term consistent performance and reliability
  • RAID performance optimised that maximises responsiveness and uptime with NAS-aware Error Recovery Control
  • Advanced power management saves energy and delivers the right power at the right time

* IronWolf Health Management Beta is only available in capacities of 4 TB and up.

Actively Protect Your NAS with IronWolf Health Management* in Synology DiskStations

  • Workload-aware monitoring providing peace of mind with notifications
  • Synology DiskStation Manager 6.1 (DSM) notifications on drive health
  • Intelligent analysis provides environmental and operational recommendations
  • Automatically detects the IronWolf drive, which is DSM-compatible. No additional software or setup required

* IronWolf Health Management features subject to change.

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

First in its class, IronWolf drives are equipped with RV sensors on high capacity drives to maintain performance in multi-bay NAS enclosures. RV sensors on IronWolf Pro come standard, helping business and creative pros to have consistent performance for years to come.

Do More With Multi-User Optimisation

Do more with your NAS with multi-user optimisation. Enabling user workloads of up to 180 TB/year on IronWolf and 300 TB/year with IronWolf Pro, multiple users can confidently upload and download data to a NAS server. Whether you’re a creative pro or a small business, IronWolf is on your side.

Be Creative Anywhere With IronWolf and Your NAS

Extensible and reliable storage helps keep you and your creative business on schedule. IronWolf and IronWolf Pro are great companions for your NAS for 24×7 remote access, backups and file sharing from anywhere, making sharing ideas easy. For growing agencies and the need for more storage, IronWolf and IronWolf Pro are built to address NAS scalability challenges.

Grow Your Business NAS

A thriving small business needs storage that can thrive with it. IronWolf is optimised for NAS in multi-RAID environments that not only the vibration, but also handle the high user workload rate in a high data traffic network. Enter multi-user technology — up to 180 TB/yr for IronWolf, up to 300 TB/yr for IronWolf Pro.

Dominate The Media

Build your home NAS media empire with IronWolf HDDs. IronWolf and IronWolf Pro lead the class in storage capacity with drives as large as 12 TB, and the performance needed to run high definition content with your NAS. Store thousands of full-length HD films and even more photographs on your private server. Think of it as your home cloud.



CPU Family
CPU Type


Total Hard Disk Size GB
Storage Type HDD

Key Features

Disk Capacity 4 TB
Disk Speed
Interface Type SATA III
Network Ready
Number of Bays
Main Colour
Drive Interface SATA III
Mean Time Between Failure (MTBF) Hours
Cache Memory 256 MB
Solid State Drive
Bundled Backup Software
Power Source
Latency ms
Disk Form Factor 3.5
Display Model in Showroom
Interface Type SATA III
Condition New
Disk Speed 7200RPM
Intended Use NAS
Recording Technology CMR
Power Requirement (auto) 10 W
Number of SATA power required 1


Case Colour
Form Factor


USB Support


Warranty 5 Years

Item Details

Manufacturer Seagate
Manufacturer Code ST4000NE001
EAN 8719706009881
Condition New

Warranty Information

Warranty 5 Years

Manufacturer Information

Manufacturer Seagate
Manufacturer Code ST4000NE001

Do you have you a question about the Seagate IronWolf Pro 4TB NAS Hard Drive, 3.5 inch, 7200RPM, 256MB Cache, CMR?

Q: In the seagate Specs for the Iron Wolf Pro 4Tb drive it suggests that the cache size is 256Mb whilst in your specs it says it is 128Mb. Which is correct?
Answer by Website User on 11th August 2022
Hi, The spec sheet from the manufacturer confirms 256Mb.
0 customers found this answer helpful.
Post Answer
4.7 / 5 9 reviews


last month

Quick delivery

Jon Ashton ARPS

11 months ago

The drives are working well, they are responsive and quite. I feel confident in their durability.

JM Restart Limited

February 2022

We love IronWolf Pro HDDs

Malou Mella

February 2021

It is a sturdy product and does the job well. The price was reasonable and it came quickly . Overall good experience. Thank you

Mr Ian Jacobs

February 2021

Excellent product at a very good price

Wavy Dave Colin Doggystyle Costello

October 2020

It's fine. Just a mid-range HDD at a mid-range price. Nothing to see here.


June 2020

Good value for money


May 2020

Great value for money

Mark Pidgeon

April 2020

Great price for the items and excellent delivery. Would repeat purchase from the company.