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Seagate Exos X18 18TB hard drive top view with SATA label and certification details
Seagate Exos X18 18TB hard drive top view with SATA label and certification details
Close-up of Seagate Exos X18 18TB hard drive showing black and green branding
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Seagate ST18000NM000J 18 TB 7200 RPM 256 MB 3.5" SATA Hard Drive

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Dispatch Time: Next Working Day Dispatch timelines are estimates and may vary due to unforeseen delays of 1-2 working days for small orders. Larger quantities may require additional processing time.

Product Code: UDHO-4205

MPN #: ST18000NM000J

Product Condition: New

Running out of storage for critical data can halt your business and risk loss of valuable information. The Seagate ST18000NM000J 18 TB 7200 RPM 256 MB 3.5" SATA Hard Drive gives you massive, reliable capacity in a single 3.5-inch drive, perfect for servers, NAS units and high-performance workstations that demand uninterrupted access to petabytes of data.

Seagate ST18000NM000J 18 TB 7200 RPM 256 MB 3.5" SATA Hard Drive - the answer to storage bottlenecks

When your applications generate terabytes of data daily, limited storage becomes a costly bottleneck, leading to slower processing and potential downtime. This issue matters because every minute of delay can translate into lost revenue and dissatisfied users. The Seagate ST18000NM000J 18 TB 7200 RPM 256 MB 3.5" SATA Hard Drive eliminates the bottleneck by offering up to 18 TB of high-density storage in a compact 1-inch height, ensuring you have enough room for growth without sacrificing performance.

Usages of Seagate ST18000NM000J 18 TB 7200 RPM 256 MB 3.5" SATA Hard Drive

Ideal for a range of enterprise environments, this drive fits seamlessly into:

  • High-capacity servers handling database and virtualization workloads.
  • Business-grade NAS devices that store shared files, backups and media archives.
  • Cloud-ready storage arrays requiring reliable, hot-plug capable drives.
  • Data-intensive research clusters processing large scientific datasets.
  • Video production edit bays that need fast, steady streams of high-resolution footage.

Key Features of Seagate ST18000NM000J 18 TB 7200 RPM 256 MB 3.5" SATA Hard Drive
  • Capacity: 18 TB. Provides ample room for massive data sets and future expansion.
  • Spindle Speed: 7200 rpm. Delivers a balanced mix of speed and power efficiency for enterprise workloads.
  • Buffer Size: 256 MB. Allows quick caching of frequently accessed data, reducing latency.
  • Interface: SATA 6 Gb/s. Ensures fast data transfer rates compatible with modern servers and NAS units.
  • MTBF: 2,500,000 hours. Guarantees long-term reliability, minimising unexpected drive failures.
  • Non-Recoverable Errors: 1 per 10^15. Offers exceptional data integrity for critical applications.
  • Power Consumption: 5.3 W idle, 9.4 W max, 6.4 W random read/write. Keeps energy costs low while maintaining performance.
  • Dimensions: 1 in H × 4 in W × 5.8 in D, 23.63 oz. Fits standard 3.5-inch bays without space issues.
  • Helium-Sealed Design. Reduces friction and heat, extending drive life and improving efficiency.

Benefits of Seagate ST18000NM000J 18 TB 7200 RPM 256 MB 3.5" SATA Hard Drive

You gain the confidence of storing vast amounts of data on a single, reliable drive, freeing up rack space and simplifying management. The high MTBF and low error rate protect your valuable information, reducing the risk of costly data loss. Energy-efficient operation lowers power bills while maintaining the speed needed for demanding workloads. Hot-plug support means you can replace or add drives without shutting down systems, keeping your services online. Finally, the helium-sealed architecture ensures cooler operation, extending the drive’s lifespan and delivering a better return on investment.


Specifications
Miscellaneous
Miscellaneous / MTBF2,500,000hours
Storage
Storage / TypeHard drive
Header
Header / Product LineSeagate Exos X18
Header / Packaged Quantity1
Dimensions & Weight
Dimensions & Weight / Height1in
Dimensions & Weight / Width4in
Dimensions & Weight / Depth5.8in
Dimensions & Weight / Weight23.63oz
Environmental Parameters
Environmental Parameters / Min Operating Temperature41 °F
Environmental Parameters / Max Operating Temperature140 °F
Environmental Parameters / Shock Tolerance (non-operating)200 g @ 2 ms
Environmental Parameters / Vibration Tolerance (non-operating)2.27 g @ 2-500 Hz
Environmental Parameters / Shock Tolerance (operating)50 g @ 2 ms
General
General / Capacity18 TB
General / Depth5.8 in
General / Buffer Size256 MB
General / Width4 in
General / Weight23.63 oz
General / InterfaceSATA 6Gb/s
General / Device TypeHard drive - internal
General / FeaturesPowerChoice, Low Halogen, Super Parity, Hot-Plug Support, PowerBalance, advanced format 512e, advanced format 4Kn, Organic Solderability Preservative, Conventional magnetic recording (CMR), Helium Sealed-Drive Design
General / Height1 in
Expansion & Connectivity
Expansion & Connectivity / Interfaces1 x SATA 6 Gb/s
Performance
Performance / Drive Transfer Rate600 MBps (external)
Performance / Spindle Speed7200 rpm
Performance / Internal Data Rate270 MBps
Reliability
Reliability / MTBF2,500,000 hours
Reliability / Non-Recoverable Errors1 per 10^15
Hard Drive
Hard Drive / Internal Data Rate270MBps
Hard Drive / Non-Recoverable Errors1 per 10^15
Hard Drive / Spindle Speed7200rpm
Hard Drive / InterfaceSerial ATA-600
Hard Drive / Capacity18TB
Hard Drive / Data Transfer Rate600MBps
Hard Drive / Buffer Size256MB
Hard Drive / Hard Drive TypeInternal hard drive
Power
Power / Power Consumption5.3 watt (idle) ¦ 9.4 watt (maximum) ¦ 6.4 watt (random read/write)
Summary Details
HDD capacity18 TB
HDD speed7200 RPM
Storage drive buffer size256 MB
HDD size3.5"
InterfaceSerial ATA III
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