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ST18000NM000J
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- Seagate Enterprise ST18000NM000J internal hard drive 3.5" 18000 GB Serial ATA III (ST18000NM000J)
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3 Year Extended Warranty
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All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
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If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
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Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
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All equipment includes a 30-day replacement warranty. If something goes wrong, we’ll repair or swap it — fast.
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ST18000NM000J Overview
ST18000NM000J is a high-capacity HDD engineered for demanding enterprise and data center environments. This 18 TB drive features a 3.5-inch form factor, SAS 12Gb/s interface, and a 7200 RPM spindle speed, paired with a 256 MB cache. It is designed with a helium-sealed construction and robust rotational vibration sensors for enhanced stability and longevity. With an annual workload rating of 550 TB/yr and an industry-leading MTBF, ST18000NM000J is built to withstand 24×7 operations in mission-critical settings.
Optimized for enterprise storage applications, this drive offers efficient power consumption—recording approximately 9.5 Watts during read/write operations and 6.8 Watts while idle. Ideal for use in data centers, desktops, NAS systems, and surveillance networks, ST18000NM000J also supports AES 256-bit encryption to ensure data security. Its advanced design and precise engineering make it a dependable choice for environments that demand high performance and consistent reliability.
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ST18000NM000J Specifications
| Product Type | Hard Drive |
| Drive Type | HDD |
| Use Case | Enterprise Storage / Data Centers |
| Interface | SAS 12Gb/s |
| Form Factor | 3.5-inch |
| Storage Capacity | 18 TB |
| Spindle Speed (RPM) | 7200 RPM |
| Cache (Buffer Size) | 256 MB |
| Average Latency | N/A |
| Data Transfer Rate | Up to 280 MB/s |
| Annual Workload Rating | 550 TB/yr |
| Power Consumption (Read/Write) | 9.5 Watts |
| Power Consumption (Idle) | 6.8 Watts |
| Encryption Support | AES 256-bit |
| Helium Sealed | Helium-Sealed |
| Drive Bays Supported | Multi-bay |
| Vibration Protection | Yes |
| Advanced Features | Rotational Vibration Sensors |
| Operating Temperature | 5–55°C |
| Product Name | Seagate Exos X18 ST18000NM000J |
| Height | 1.03 inches |
| Width | 5.79 inches |
| Depth | 4.02 inches |
| Weight | 1.85 lbs |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Advanced Features | Rotational Vibration Sensors | N/A | N/A | Rotational Vibration Sensors | Dual Actuator |
| Annual Workload Rating | 550 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| Cache (Buffer Size) | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Data Transfer Rate | Up to 280 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 210 MB/s | Up to 210 MB/s |
| Depth | 4.02 inches | 4.01 inches | 4 inches | 5.79 inches | 4.0 inches |
| Drive Bays Supported | Multi-bay | Multi-bay | Multi-bay | Multi-bay | Multi-bay |
| Drive Type | HDD | HDD | HDD | HDD | HDD |
| Encryption Support | AES 256-bit | AES 256-bit | No | No | AES 256-bit |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Height | 1.03 inches | 1.03 inches | 1 inch | 1.03 inches | 1.0 inches |
| Helium Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | No | Helium-Sealed |
| Interface | SAS 12Gb/s | SATA III | SAS 12Gb/s | SATA III | SATA III |
| Operating Temperature | 5–55°C | 5–60°C | 5–60°C | 5–60°C | 5–60°C |
| Power Consumption (Idle) | 6.8 Watts | 5.5 Watts | N/A | 6.0 Watts | 6 Watts |
| Power Consumption (Read/Write) | 9.5 Watts | 7.2 Watts | N/A | 9.0 Watts | 8 Watts |
| Product Name | Seagate Exos X18 ST18000NM000J | ST8000NM000A | ST4000NM002A | ST6000NM003A 6TB Enterprise SATA III HDD | ZA240NX1A001 |
| Product Type | Hard Drive | Hard Drive | Hard Drive | Hard Drive | Hard Drive |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Storage Capacity | 18 TB | 8 TB | 4 TB | 6 TB | 8 TB |
| Use Case | Enterprise Storage / Data Centers | Desktop / Server / NAS / Surveillance / Enterprise Storage | Server / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Enterprise Storage |
| Vibration Protection | Yes | Yes | Yes | Yes | Yes |
| Weight | 1.85 lbs | 1.8 lbs | 2.0 lbs | 1.2 lbs | 1.8 lbs |
| Width | 5.79 inches | 5.79 inches | 5.79 inches | 4.00 inches | 5.8 inches |
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Questions & Answers
Q
What is the storage capacity of the Seagate Enterprise ST18000NM000J internal hard drive?
A
The Seagate Enterprise ST18000NM000J provides 18 000 GB (18 TB) of raw storage capacity.
Q
Which interface and form factor does the ST18000NM000J use?
A
The ST18000NM000J is a 3.5″ Serial ATA III (6 Gb/s) internal hard drive.
Q
What is the rotational speed of the Seagate ST18000NM000J?
A
The ST18000NM000J spins at 7 200 RPM for a balance of performance and reliability.
Q
How much cache memory does the ST18000NM000J include?
A
It features a 256 MB DRAM cache to accelerate read/write operations.
Q
What are the performance specifications of the ST18000NM000J?
A
This drive delivers sustained data transfer rates up to 261 MB/s under typical workloads.
Q
Is the ST18000NM000J suitable for RAID environments?
A
Yes, it supports RAID configurations and includes RAID-specific error recovery controls (TLER).
Q
What is the workload rating of the Seagate Enterprise ST18000NM000J?
A
The drive is rated for 550 TB/year workload, making it ideal for enterprise-class applications.
Q
What is the MTBF (Mean Time Between Failures) for the ST18000NM000J?
A
The ST18000NM000J has a MTBF of 2.5 million hours for enterprise-grade reliability.
Q
Does the ST18000NM000J support self-encryption?
A
Yes, it offers optional AES 256-bit self-encryption (SED) to protect data at rest.
Q
Which operating systems are compatible with the Seagate ST18000NM000J?
A
It is compatible with all modern OS platforms that support SATA III, including Windows, Linux, and VMware.
Q
What are the power consumption specifications of the ST18000NM000J?
A
Power draw is 6.8 W during read/write and 5.5 W in idle mode, optimizing energy efficiency.
Q
How much noise does the ST18000NM000J generate during operation?
A
Operational acoustics are 34 dBA (idle) and 36 dBA (seek), ensuring a quiet data-center environment.
Q
What is the manufacturer warranty on the Seagate Enterprise ST18000NM000J?
A
Seagate provides a 5-year limited warranty for the ST18000NM000J.
Q
What are the recommended use cases for the ST18000NM000J?
A
Ideal for data centers, cloud storage, backup and archive solutions requiring high capacity and reliability.
Q
How do I install the Seagate Enterprise ST18000NM000J in my server?
A
Mount the 3.5″ drive in a SATA 6 Gb/s bay, connect power and data cables, then configure in BIOS or RAID controller.
Q
What environmental conditions does the ST18000NM000J support?
A
Operating temperature range is 5 °C to 60 °C with non-operating shock tolerance up to 250 G.
