Seagate Exos M 28TB ST28000NM003K 3.5" SATA HDD 7200RPM Server Hard Drive
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28TB 3.5-inch CMR SATA hard drive for enterprise and cloud data-centre storage
Seagate Exos M 28TB ST28000NM003K 7,200RPM Hard Drive
The Seagate Exos M 28TB ST28000NM003K is a helium-sealed, 7,200RPM CMR hard drive with a SATA 6Gb/s interface, 512MB cache and an up-to-270MB/s sustained transfer rate. It is rated for 2.5 million hours MTBF and carries a five-year limited warranty.
- 28TB
- CMR
- 7,200RPM
- 270MB/s
- 512MB cache
- Five-year warranty
| Capacity |
28TB |
| Interface |
SATA 6Gb/s |
| Sustained transfer |
Up to 270MB/s |
| Workload |
550TB/year |
High-capacity storage for enterprise infrastructure
The Seagate Exos M 28TB ST28000NM003K is designed for always-on enterprise infrastructure, bulk data, backup, archive and large-scale storage pools. PowerChoice and PowerBalance support system-level power and performance management, while hot-plug capability, rotational-vibration tolerance and enterprise reliability features support qualified multi-drive platforms.
High-capacity CMR
28TB of conventional magnetic recording supports predictable sustained behaviour in qualified enterprise arrays.
Up to ${c.transfer}MB/s
The exact model is rated up to 270MB/s maximum sustained transfer rate at the outer diameter.
Enterprise reliability
A 2.5-million-hour MTBF rating, 0.35% AFR and five-year limited warranty support large-scale deployment planning.
PowerChoice and PowerBalance
Seagate technologies allow compatible systems to manage idle power and balance watts per terabyte against performance.
Hot-plug capable
The model supports hot-plug operation when the host, controller and operating procedure support it.
Instant Secure Erase
This exact standard model is listed with Seagate Instant Secure Erase for efficient sanitisation workflows.
Who is the Seagate Exos M 28TB ST28000NM003K best for?
A strong choice for
- Qualified enterprise servers and storage arrays
- High-capacity backup and archive repositories
- Cloud and data-centre bulk storage
- AI and data-intensive capacity tiers
- Scale-out systems using supported SATA enterprise drives
Consider another model if you need
- Your chassis, NAS or controller does not list this exact model as compatible
- Your system cannot provide adequate airflow and power
- You require a different interface such as SAS
- Your application requires SSD latency rather than HDD capacity
Key specifications
| Model |
ST28000NM003K |
| Series |
Exos M |
| Capacity |
28TB |
| Form factor |
3.5-inch |
| Interface |
SATA 6Gb/s |
| Recording |
CMR |
| Spindle speed |
7,200RPM |
| Cache |
512MB |
| Sustained transfer |
Up to 270MB/s |
| Workload rating |
550TB/year |
| MTBF |
2.5 million hours |
| Warranty |
Five-year limited warranty |
Full technical specifications
Identity, capacity and interface
| Manufacturer |
Seagate |
| Series |
Exos M |
| Model |
ST28000NM003K |
| Capacity |
28TB |
| Drive type |
Enterprise internal hard drive |
| Form factor |
3.5-inch |
| Interface |
SATA 6Gb/s |
| Interface speeds |
6.0 and 3.0Gb/s |
| Interface ports |
Single |
| Recording technology |
CMR |
| Drive design |
Helium sealed |
| Sector format |
512e |
| Cache |
512MB |
| Hot-plug |
Supported when the platform supports hot-plug |
Performance, workload and reliability
| Spindle speed |
7,200RPM |
| Maximum sustained transfer rate |
270MB/s |
| Random read/write 4K QD16 WCD |
170 / 350 IOPS |
| Average latency |
4.16ms |
| AFR |
0.35% |
| Workload rate limit |
550TB/year |
| MTBF |
2.5 million hours; population statistic |
| Nonrecoverable read errors |
1 per 10E15 bits read |
| Power-on hours per year |
8,760 |
| Rotational vibration |
12.5 rad/s |
| Warranty |
Five-year limited warranty |
| Instant Secure Erase |
Supported on this standard model |
| RSA firmware verification |
RSA 3072 |
| Performance note |
Actual rates vary with workload, host, RAID level and operating conditions |
Power, environment and physical
| Startup current |
Platform specification required |
| Idle power |
6.9W average |
| Operating power |
9.5W maximum |
| Standby power |
Not stated in the supplied exact-model table |
| Sleep power |
Not stated in the supplied exact-model table |
| Power supply |
+12V and +5V |
| Operating temperature |
10°C to 60°C |
| Non-operating temperature |
Follow current Seagate product manual |
| Non-operating vibration |
2.27Grms |
| Operating shock |
30Gs |
| Non-operating shock |
200Gs |
| Dimensions |
147 × 101.85 × 26.1mm |
| Weight |
695g |
| Cooling note |
Use only within the chassis vendor's airflow and temperature requirements |
Frequently asked questions about the Seagate Exos M 28TB ST28000NM003K
What is the ST28000NM003K?
It is a 28TB Seagate Exos M 3.5-inch CMR SATA hard drive for enterprise and cloud data-centre storage.
Is the ST28000NM003K CMR or SMR?
It uses conventional magnetic recording (CMR).
How fast is the ST28000NM003K?
It spins at 7,200RPM and is rated up to 270MB/s sustained transfer rate.
How much cache does the ST28000NM003K have?
Seagate specifies 512MB of cache.
What workload rating applies to the ST28000NM003K?
The published workload rating is 550TB per year.
What is the MTBF of the ST28000NM003K?
Seagate specifies 2.5 million hours as a population-level MTBF statistic.
Can the ST28000NM003K be used in RAID?
Yes in a qualified system, but the exact drive, controller, firmware and RAID design must be verified.
What temperatures are specified for the ST28000NM003K?
The published operating range is 10°C to 60°C; system airflow must keep the drive within limits.
What are the dimensions of the ST28000NM003K?
It measures 147 × 101.85 × 26.1mm and weighs 695g.
What warranty applies to the ST28000NM003K?
Seagate specifies a five-year limited warranty, subject to regional terms and workload conditions.
Important information:
- Confirm the exact model on the NAS, server or storage-system compatibility list.
- Capacity, performance and workload ratings do not replace RAID, backup and disaster-recovery planning.
- Provide appropriate rack or chassis airflow, power and vibration control.
- Instant Secure Erase is not the same as a TCG self-encrypting drive; no unsupported SED claim is made.
