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Enterprise 6TB drive provides stable SATA performance for servers.
ST6000NM021A
Seagate Enterprise ST6000NM021A internal hard drive 3.5" 600...
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ST6000NM021A
Seagate Enterprise ST6000NM021A internal hard drive 3.5" 600...
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ST6000NM021A is a high-performance HDD engineered for enterprise and data center applications, featuring a 3.5-inch form factor with a SATA III interface. It delivers a robust 6 TB of storage capacity, operates at 7200 RPM, and is equipped with a 256 MB cache to efficiently handle intensive workloads of up to 550 TB/yr with an MTBF of 2,000,000 hours, ensuring long-term reliability and continuous 24/7 operation.
ST6000NM021A incorporates advanced design elements including a helium-sealed architecture that minimizes internal friction and enhances thermal efficiency, along with integrated vibration protection to maintain peak performance in multi-drive environments. Ideal for use in data centers, servers, NAS systems, and surveillance applications, it also offers optimized power consumption with approximately 8.9 Watts during read/write operations and 6.5 Watts in idle mode.
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 ST6000NM021A |  XS3840TE70004 |  ST12000NM001G |  ST8000VX004 |  ST600MM0009 | |
|---|---|---|---|---|---|
| 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 | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Interface | SATA III | SATA III | SAS 12Gb/s | SATA III | SATA III |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 6 TB | 4 TB | 12 TB | 8 TB | 600 GB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 256 MB | 256 MB | 256 MB | 256 MB | 64 MB |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| Data Transfer Rate | N/A | Up to 210 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 210 MB/s |
| Annual Workload Rating | 550 TB/yr | 180 TB/yr | 550 TB/yr | 550 TB/yr | 300 TB/yr |
| Power Consumption (Read/Write) | 8.9 Watts | 8 Watts | 8.9 Watts | N/A | 8 Watts |
| Power Consumption (Idle) | 6.5 Watts | 4 Watts | 6.0 Watts | N/A | 5 Watts |
| Encryption Support | No | AES 256-bit | AES 256-bit | AES 256-bit | 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 | N/A | Dual Actuator | Rotational Vibration Sensors | Rotational Vibration Sensors | Dual Actuator |
| Operating Temperature | 5–60°C | 5–55°C | 5–60°C | 5–60°C | 5–60°C |
| Product Name | ST6000NM021A | XS3840TE70004 | Seagate Exos X12 12TB Enterprise Hard Drive | ST8000VX004 8TB Enterprise HDD | ST600MM0009 600GB 7200 RPM Enterprise HDD |
| Height | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches |
| Width | 5.79 inches | 5.79 inches | 4.00 inches | 5.79 inches | 4 inches |
| Depth | 4.00 inches | 4.11 inches | 5.79 inches | 4.01 inches | 5.79 inches |
| Weight | 1.6 lbs | 1.2 lbs | 2.00 lbs | 1.80 lbs | 2.07 lbs |
Enterprise 6TB drive provides stable SATA performance for servers.
Reliable 7200 RPM speeds with strong durability.
Consistent throughput in data center environments.
Dependable enterprise HDD with predictable uptime.
Professional-grade storage solution for business workloads.
The Seagate Enterprise ST6000NM021A delivers 6TB (6000 GB) of raw storage, ideal for high-density data centers and enterprise applications.
The ST6000NM021A uses a SATA III (6 Gb/s) interface, ensuring broad compatibility and high-speed data transfers.
This drive is a 3.5-inch form factor hard disk drive, designed for standard enterprise servers and storage enclosures.
The ST6000NM021A spins at 7200 RPM, delivers up to 255 MB/s sustained transfer rates, and features a 256 MB cache for optimized I/O performance.