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Seagate IronWolf Pro 4TB Enterprise Internal NAS HDD – 3.5" CMR, SATA 6Gb/s, 7200RPM, 256MB Cache (ST4000NTZ01)
Trustpilot Rated Excellent 4,000+ Reviews
Condition Selected: New
- New Out of stock
Condition details
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Each condition grade explains the item’s expected cosmetic appearance. Used items are checked and tested before dispatch.
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Condition guide
New
Brand-new item
A brand-new, unused, unopened item in its original packaging, never worn, used, or activated, with all original packaging intact.
Like New
Pristine condition
The item appears as if it has just come out of a retail box. There are no signs of wear, and all original protective materials are intact. The item may have been opened or used very minimally but retains its pristine condition, and all original accessories are included.
Very Good
Minimal wear
The item shows minimal wear from general use and is 100% operational and functions as intended. It may have minor cosmetic imperfections but performs well, and may be missing non-essential accessories.
Good
Noticeable wear
The item is fully operational and functions as intended, but has noticeable wear from previous use. It may have aesthetic imperfections such as scratches or dents, and may be missing non-essential accessories.
Fair
Fairly worn
The item is fairly worn but continues to work perfectly. Signs of wear can include aesthetic issues such as scratches, dents, and worn corners, and it may be missing non-essential accessories.
Overview
The Seagate IronWolf Pro 4TB (ST4000NTZ01) is an enterprise-grade internal hard drive engineered specifically for NAS (Network Attached Storage) systems and always-on environments. Designed for demanding workloads, this high-performance 3.5-inch CMR drive delivers reliable speed, strong durability and consistent performance for multi-user storage, backups and RAID arrays. With SATA 6Gb/s, a fast 7200RPM spindle speed and 256MB cache, it’s ideal for businesses, creators and power users who need dependable storage for critical data in NAS enclosures.
Key Features
- 4TB enterprise-class NAS hard drive designed for 24/7 operation
- CMR recording technology for consistent RAID and NAS performance
- 7200RPM speed for faster access, reads and file handling
- SATA 6Gb/s interface for reliable high-speed connectivity
- 256MB cache for smoother performance under heavy workload
- Optimised for RAID NAS systems with multi-user environments
- Built for durability and long-term reliability in NAS enclosures
- Includes Data Rescue Services (manufacturer offering, eligibility applies)
- Frustration-Free Packaging for safer, simpler delivery
Benefits
- Ideal for NAS storage, file sharing and backups with consistent 24/7 performance
- CMR technology ensures better stability for RAID setups compared with SMR drives
- Faster access speeds make it suitable for business storage, editing workflows and archives
- Strong reliability for critical files in multi-user environments
- Expand storage in NAS systems with an enterprise-grade drive built for heavy usage
- Great choice for professionals needing dependable storage for important data
Specifications Table
| Specification | Details |
|---|---|
| Brand | Seagate |
| Series | IronWolf Pro |
| Model | ST4000NTZ01 |
| Capacity | 4TB |
| Drive Type | Internal NAS HDD (Enterprise Grade) |
| Form Factor | 3.5 Inch |
| Recording Technology | CMR |
| Interface | SATA 6Gb/s |
| Rotational Speed | 7200 RPM |
| Cache | 256MB |
| RAID / NAS Use | Optimised for NAS and RAID environments |
| Packaging | Frustration-Free Packaging |
| Services | Data Rescue Services (terms apply) |
| EAN / Barcode | 763649177013 |
Please note: Next Day Delivery does not include weekends. Saturday delivery is only available when Express Delivery is selected on Friday before 4:00 p.m.
Delivery AreasNext Day Delivery is available to mainland UK, excluding:
AB, IV, KW, PA, PH, HS, KA, ZE, PO30–PO41, IM, JE, GY, BT, TR21–TR25
Delivery to these areas may take 3–5 working days.
Working days are Monday–Friday, excluding public holidays.
Shop with confidence with our 30-day return policy. Changed your mind? You can return your item within 30 days of delivery.
If your item is faulty, damaged or not as described, we’ll provide a FREE prepaid return label.
How it works:
- Contact us within 30 days.
- Return your item using the instructions provided.
- Once received and checked, we’ll arrange your refund, replacement or repair.
Simple returns. No return postage to pay if your item is faulty.
For more information, please see our Returns Policy.
A brand-new, unused, unopened item in its original packaging, never worn, used, or activated, with all original packaging intact.
Like NewThe item appears as if it has just come out of a retail box. There are no signs of wear, and all original protective materials are intact. The item may have been opened or used very minimally but retains its pristine condition, and all original accessories are included.
Very GoodThe item shows minimal wear from general use and is 100% operational and functions as intended. It may have minor cosmetic imperfections but performs well, and may be missing non-essential accessories.
GoodThe item is fully operational and functions as intended, but has noticeable wear from previous use. It may have aesthetic imperfections such as scratches or dents, and may be missing non-essential accessories.
FairThe item is fairly worn but continues to work perfectly. Signs of wear can include aesthetic issues such as scratches, dents, and worn corners, and it may be missing non-essential accessories.
| SKU: |
RM147433SN0 |
|---|---|
| EAN/UPC: |
763649177013 |
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Buy now, pay later interest free instalments.
No hidden fees. This is a credit product. 18+.
Pay every 2 weeks in 4 interest-free payments.
Clearpay credit subject to status. Use responsibly as late fees up to £24 per order apply, which may impact your future access to credit. T&Cs apply.
Klarna's Pay in 3 / Pay in 30 days are unregulated credit agreements. Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. 18+, UK residents only. Subject to status. Late fees may apply.
Buy now, pay later interest free instalments.
No hidden fees. This is a credit product. 18+.
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