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18TB Exos X18 SAS drive delivers massive capacity and dependable enterprise speeds.
ST18000NM004J
18TB EXOS X18 SAS 7.2K RPM 3.5IN
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ST18000NM004J
18TB EXOS X18 SAS 7.2K RPM 3.5IN
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ST18000NM004J is a high-capacity HDD engineered for enterprise and data center applications. This 3.5-inch drive features a SAS 12Gb/s interface, a spindle speed of 7200 RPM, an 18 TB storage capacity, and a 256 MB cache. It is built to handle intensive workloads with an annual workload rating of 550 TB/yr and a robust MTBF of 2,000,000 hours, ensuring reliable 24/7 operation.
Designed for high performance and endurance, the ST18000NM004J incorporates advanced features such as a helium-sealed enclosure, integrated vibration protection, and dual actuator technology. With power consumption figures of 9.1 watts during active read/write operations and 6.2 watts in idle mode, this drive is ideally suited for use in data centers, enterprise servers, NAS solutions, and surveillance systems.
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 ST18000NM004J |  ST6000NM029A |  ST1000NX0423 |  ST4000VX013 |  ST6000NM0115 | |
|---|---|---|---|---|---|
| Product Type | Hard Drive | Hard Drive | Hard Drive | Hard Drive | Hard Drive |
| Drive Type | HDD | HDD | HDD | HDD | HDD |
| Use Case | Desktop / Server / NAS / Surveillance / Enterprise Storage | Enterprise Storage | Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Enterprise Storage |
| Interface | SAS 12Gb/s | SAS 12Gb/s | SAS 12Gb/s | SATA III | SAS 12Gb/s |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 18 TB | 6 TB | 1 TB | 4 TB | 6 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 256 MB | 256 MB | 128 MB | 128 MB | 256 MB |
| Average Latency | N/A | 4.17 ms | N/A | N/A | N/A |
| Data Transfer Rate | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 210 MB/s | Up to 250 MB/s |
| Annual Workload Rating | 550 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 9.1 Watts | 9.0 Watts | 9 Watts | 8.0 Watts | 8.0 Watts |
| Power Consumption (Idle) | 6.2 Watts | 5.1 Watts | 5 Watts | 5.0 Watts | 6.0 Watts |
| Encryption Support | AES 256-bit | AES 256-bit | AES 256-bit | No | AES 256-bit |
| Helium Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed |
| Drive Bays Supported | Multi-bay | Multi-bay | Multi-bay | Multi-bay | Multi-bay |
| Vibration Protection | Yes | Yes | Yes | Yes | Yes |
| Advanced Features | Dual Actuator | Rotational Vibration Sensors | Dual Actuator | Rotational Vibration Sensors | Rotational Vibration Sensors |
| Operating Temperature | 5–60°C | 5–60°C | 5–60°C | 5–60°C | 5–60°C |
| Product Name | ST18000NM004J | Seagate ST6000NM029A 6TB 7200 RPM 256MB Cache SAS Enterprise HDD | ST1000NX0423 | ST4000VX013 Enterprise 4TB HDD | Seagate Exos X16 6TB ST6000NM0115 |
| Height | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches |
| Width | 4 inches | 4.0 inches | 5.79 inches | 5.79 inches | 4.01 inches |
| Depth | 5.79 inches | 5.8 inches | 4.01 inches | 7.79 inches | 5.75 inches |
| Weight | 2.2 lbs | 1.80 lbs | 2.1 lbs | 1.5 lbs | 2.0 lbs |
18TB Exos X18 SAS drive delivers massive capacity and dependable enterprise speeds.
Stable 7.2K RPM performance for data centers.
Reliable SAS connectivity with consistent throughput.
Excellent enterprise HDD for large-scale backups.
Professional-grade 18TB storage solution.
The ST18000NM004J offers 18TB of raw storage capacity.
It features a dual-port 12Gb/s SAS interface for enterprise connectivity.
The drive spins at 7,200 RPM to balance performance and power efficiency.
It is a standard 3.5-inch enterprise hard drive.