Seagate Exos X20 Enterprise HDD - 18TB
Brand: Seagate | Category: Enterprise HDDs
SKU: ST18000NM003D | Part #: ST18000NM003D | MPN: ST18000NM003D
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About the Seagate Exos X20 Enterprise HDD - 18TB
The Seagate Exos X20 Enterprise HDD - 18TB from Seagate is enterprise-grade Enterprise HDDs hardware built for data centers. It features 18TB capacity, 3.5" form factor, SATA 6Gb/s interface, Read: 267 MB/s, Write: 267 MB/s speed. The Seagate Exos X20 (ST18000NM003D) is a 3.5-inch, 7200 RPM enterprise-class hard disk drive engineered for high-density, always-on data center environments. Built on Seagate's ninth-generation enterprise platform with helium-sealed technology, the Exos X20 delivers 18TB of raw capacity using conventional magnetic recording (CMR) to ensure broad compatibility with enterprise storage controllers, RAID arrays, and hyperscale infrastructure. The drive incorporates Seagate's Pow Available in brand new condition. Seagate enterprise hdds products are trusted by enterprises and data centers worldwide. Available from Omnixon Global. Contact our sales team to request a quote.
Technical Specifications
| Brand | Seagate |
| Category | Enterprise HDDs |
| SKU | ST18000NM003D |
| Part Number | ST18000NM003D |
| Condition | New |
| Capacity | 18TB |
| Form Factor | 3.5" |
| Interface | SATA 6Gb/s |
| Speed | Read: 267 MB/s, Write: 267 MB/s |
| Manufacturer Part Number | ST18000NM003D |
| Capacity | 18 TB |
| Form Factor | 3.5-inch |
| Interface | SATA 6 Gb/s |
| Spindle Speed | 7200 RPM |
| Cache (Buffer) | 256 MB |
| Recording Technology | CMR (Conventional Magnetic Recording) |
| Sustained Transfer Rate (OD) | Up to 268 MB/s |
| Sector Format | 512e / 4Kn |
| MTBF | 2,500,000 hours |
| Workload Rate (Annualized) | 550 TB/year |
| Operating Shock | 70 Gs (2 ms, read); 40 Gs (2 ms, write) |
| Non-Operating Shock | 250 Gs (1 ms) |
| Power – Idle (Average) | 5.0 W |
| Power – Operating (Average) | 9.0 W |
| Encryption | None (standard model; SED variant available separately) |
| Rotational Vibration Sensors | Yes |
| Helium Sealed Drive | Yes |
| Operating Temperature | 5°C to 60°C |
| Weight | 670 g (approximate) |
Frequently Asked Questions about Seagate Exos X20 Enterprise HDD - 18TB
What does the Seagate Exos X20 Enterprise HDD - 18TB do?
At 18TB, the Seagate Exos X20 Enterprise HDD - 18TB 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 X20 Enterprise HDD - 18TB?
Key specifications for the Seagate Exos X20 Enterprise HDD - 18TB: capacity 18TB; form factor 3.5 inch; interface SATA 6Gb/s; new condition; drive media type HDD; storage form factor 3.5 inch; storage capacity 18TB; storage interface SATA 6Gb/s. Manufacturer part number ST18000NM003D. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
Is the Seagate Exos X20 Enterprise HDD - 18TB compatible with my infrastructure?
The Seagate Exos X20 Enterprise HDD - 18TB uses a SATA 6Gb/s interface in a 3.5 inch form factor. 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.