Seagate Exos X18 Enterprise Class, 18TB, Enterprise Internal Hard Drive, SATA, 3,5" 6Gbit/s, 128MB cache ((ST18000NM000J)

Seagate Enterprise ST18000NM000J internal hard drive 18 TB 7200 RPM 256 MB 3.5" Serial ATA III

Seagate Exos X18 Enterprise Class, 18TB, Enterprise Internal Hard Drive, SATA, 3,5" 6Gbit/s, 128MB cache ((ST18000NM000J)

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Seagate Exos X18 Enterprise Class, 18TB, Enterprise Internal Hard Drive, SATA, 3,5" 6Gbit/s, 128MB cache ((ST18000NM000J)

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Seagate Exos X18 Enterprise Class, 18TB, Enterprise Internal Hard Drive, SATA, 3,5" 6Gbit/s, 128MB cache ((ST18000NM000J)

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£362.94
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Seagate Exos X18 Enterprise Class, 18TB, Enterprise Internal Hard Drive, SATA, 3,5" 6Gbit/s, 128MB cache ((ST18000NM000J)

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Seagate Enterprise ST18000NM000J internal hard drive 18 TB 7200 RPM 256 MB 3.5" Serial ATA III

Overall Rating: 4.8 / 5 (average from multiple review sources, as of 13 Dec 2025)
Based on a total of 395 customer reviews from independent review platforms.

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£372.99
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Seagate Exos X18 Enterprise Class, 18TB, Enterprise Internal Hard Drive, SATA, 3,5" 6Gbit/s, 128MB cache ((ST18000NM000J)

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£385.00
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Seagate Exos X18 Enterprise Class, 18TB, Enterprise Internal Hard Drive, SATA, 3,5" 6Gbit/s, 128MB cache ((ST18000NM000J)

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£390.47
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Seagate Exos X18 Enterprise Class, 18TB, Enterprise Internal Hard Drive, SATA, 3,5" 6Gbit/s, 128MB cache ((ST18000NM000J)

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£393.97
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ST18000NM000J Seagate3.5", 18TB, 7.2K, SA TA3, 6Gb/s, 256MB, 512e/4Kn

Overall Rating: 1.2 / 5 (average from multiple review sources, as of 9 Dec 2025)
Based on a total of 21,719 customer reviews from independent review platforms.

Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

All brand names and logos are the property of their respective owners.

Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
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Product Information

Weight & dimensions

Weight 670 g
Height 26.1 mm
Depth 147 mm
Width 101.8 mm

Packaging data

Quantity per pack 20 pc(s)

Operational conditions

Operating temperature (T-T) 5 - 60 °C
Non-operating vibration 2.27 G
Operating shock 50 G
Non-operating shock 200 G

Power

Operating voltage 5 / 12 V
Power consumption (read) 9.4 W
Power consumption (write) 6.4 W
Power consumption (idle) 5.3 W

Features

Mean time between failures (MTBF) 2500000 h
Storage drive buffer size 256 MB
HDD speed 7200 RPM
24/7 operation Yes
HDD capacity 18 TB
Rotational Vibration (RV) sensors Yes
Uncorrectable Bit Error Rate (UBER) < 1 per 10^15 bits read
Average latency 4.16 ms
HDD sustained transfer rate 258 MiB/s
HDD interface transfer rate 6 Gbit/s
Component for Disk array
Type HDD
Interface Serial ATA III
HDD size 3.5"

Product information

At a glance

Perfect for Heavy Data Users

  • 18TB capacity for extensive data storage
  • Fast 6 Gbps data transfer speeds
  • Durable design for long-lasting performance

Note: This text was created with the help of AI.

Perfect for Heavy Data Users

If you're in the market for a robust storage solution, the Seagate Exos X18 SATA III 18TB (ST18000NM000J) is the perfect choice for you! Ideal for businesses, gamers, and creative professionals, this high-capacity hard drive is designed to handle large amounts of data with ease. Whether you're managing extensive databases, archiving important files, or simply need extra room for your digital library, this drive will meet and exceed your expectations. You can explore more options for your storage needs by checking out **Hard Drives**.

Powerful Performance and Reliability

The Seagate Exos X18 is packed with advanced features that ensure superior performance and reliability. With a massive **18TB** of storage, this drive provides unmatched capacity for all your data needs. It operates via SATA III interface, boasting impressive data transfer rates that can reach up to 6 Gbps, letting you move your files quickly and efficiently. Additionally, its 7200 RPM spindle speed enhances its performance, making it an excellent choice for tasks that require quick access to large volumes of data. The drive also features Seagate’s innovative technology that helps to minimize power consumption, making it a more energy-efficient option for your setup.

Sturdy Design and Build Quality

You'll appreciate the durable design of the Seagate Exos X18, which is built to withstand the demands of continuous use. The rugged casing protects the drive from physical damage while ensuring optimal heat dissipation, which is crucial for maintaining performance during heavy workloads. The sleek and professional look is perfect for any data center or home office setup, allowing it to blend seamlessly with your existing equipment. Plus, its versatility means it can easily be integrated into various systems, from NAS units to enterprise servers, making it a standout option in the market.

Comprehensive Warranty and Support

With the Seagate Exos X18, you're not just buying a hard drive; you're investing in a reliable storage solution supported by a comprehensive warranty. Seagate offers a **5-year limited warranty**, assuring you of its durability and performance over time. This level of support underlines Seagate’s commitment to quality, giving you peace of mind with your purchase. Plus, their customer service is known for being prompt and helpful, so you can feel confident that assistance is just a call or click away if you need it. Don't miss out on this powerhouse of a hard drive that promises to take your data storage to the next level!

Note: This text was created with the help of AI.

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4 Variants from £249.98

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Seagate Exos X18 Enterprise Class, 18TB, Enterprise Internal Hard Drive, SATA, 3,5" 6Gbit/s, 128MB cache ((ST18000NM000J)

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Capacity: 18TB Spin Speed: 7200RPM Cache: 256MB Form Factor: 3.5" Warranty: 5 Years
£358.00
Usually dispatched within 2 to 3 days
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