Seagate Exos X18 18TB Enterprise Hard Drive
Brand: Seagate | Category: Enterprise HDDs
SKU: ST18000NM004J | Part #: ST18000NM004J | MPN: ST18000NM004J
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About the Seagate Exos X18 18TB Enterprise Hard Drive
SATA 6Gb/s 3.5-inch enterprise hard drive with an MTBF rating of 2,500,000 hours, the Seagate Exos X18 18TB (part number ST18000NM004J) delivers capacity and reliability for demanding data center environments. This 18TB drive combines Conventional Magnetic Recording (CMR) technology with a 7,200 RPM spindle speed to achieve sustained transfer rates of up to 270MB/s. The 256MB cache buffer and helium-sealed enclosure enhance performance and operational stability, while rotational vibration compensation ensures consistent access speeds even in multi-drive arrays. Seagate engineered the Exos X18 to support an annualized workload rating of 550TB/year, making it suitable for always-on enterprise deployments that demand both speed and endurance.
Storage architects, data center managers, and IT procurement teams select the Exos X18 when building large-capacity RAID arrays, nearline storage systems, and archival infrastructure that cannot tolerate frequent downtime. With 600,000 load/unload cycles and an operating temperature range of 5°C to 60°C, this Seagate drive balances high availability with manageable thermal and power profiles. Operating power consumption sits at 9.0W during read/write operations, dropping to 5.0W in idle mode with PowerChoice technology—a critical advantage for cost-sensitive environments running 24/7 operations. The availability of a Self-Encrypting Drive (SED) option on select models adds a layer of data security for regulated industries and compliance-sensitive deployments.
Omnixon Global stocks the Exos X18 (ST18000NM004J) and other Seagate enterprise storage solutions across our Dubai facility, ensuring rapid availability for regional data center builds and system integrations. For bulk orders, architecture reviews, or technical specifications tailored to your infrastructure roadmap, submit a request for quotation through Omnixon Global today.
Technical Specifications
| Brand | Seagate |
| Category | Enterprise HDDs |
| SKU | ST18000NM004J |
| Part Number | ST18000NM004J |
| Condition | New |
| Capacity | 18TB |
| Form Factor | 3.5" |
| Interface | SATA 6Gb/s |
| Speed | 7,200 RPM |
| Manufacturer Part Number | ST18000NM004J |
| Series | Exos X18 |
| Raw Capacity | 18TB |
| Form Factor | 3.5-inch |
| Interface | SATA 6Gb/s |
| Recording Technology | Conventional Magnetic Recording (CMR) |
| Spindle Speed | 7,200 RPM |
| Cache Buffer | 256MB |
| Sustained Transfer Rate (OD) | Up to 270MB/s |
| Annualized Workload Rating | 550TB/year |
| MTBF | 2,500,000 hours |
| Load/Unload Cycles | 600,000 |
| Operating Power (Read/Write) | 9.0W |
| Idle Power (PowerChoice) | 5.0W |
| Operating Temperature | 5°C to 60°C |
| Non-Operating Temperature | -40°C to 70°C |
| Rotational Vibration Compensation | Yes |
| Helium-Sealed Enclosure | Yes |
| Encryption | Self-Encrypting Drive (SED) option available (model dependent) |
| Height | 26.11mm |
| Weight | 670g |
Frequently Asked Questions about Seagate Exos X18 18TB Enterprise Hard Drive
What does the Seagate Exos X18 18TB Enterprise Hard Drive do?
At 18TB, the Seagate Exos X18 18TB Enterprise Hard Drive suits enterprise data-center storage tiers — all-flash arrays, hyperconverged storage pools (vSAN, Ceph), database backends, and high-throughput backup repositories. The SATA 6Gb/s interface is supported by major server platforms.
What are the headline specs of the Seagate Exos X18 18TB Enterprise Hard Drive?
Key specifications for the Seagate Exos X18 18TB Enterprise Hard Drive: capacity 18TB; interface SATA 6Gb/s; new condition; product name Seagate Exos X18 18TB Enterprise Hard Drive; brand Seagate; category HDD; capacity 18TB; interface SATA 6Gb/s; form factor 3.5-inch. Manufacturer part number ST18000NM004J. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
Is the Seagate Exos X18 18TB Enterprise Hard Drive compatible with my infrastructure?
The Seagate Exos X18 18TB Enterprise Hard Drive uses a SATA 6Gb/s interface. It's compatible with server platforms that expose this interface — typical deployments include Dell PowerEdge, HPE ProLiant, Lenovo ThinkSystem, and Supermicro SuperServer chassis. For specific vendor part-number compatibility, our team validates against the manufacturer support matrix.