
Seagate IronWolf Pro 28TB Enterprise NAS Internal HDD Hard Drive – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage, Rescue Services (ST28000NT000)
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AI Verdict
A 28TB, 7200 RPM CMR 3.5-inch HDD with 512MB cache, built for 24/7 multi-bay NAS and RAID systems.
The 28TB capacity, 2.5 million hours MTBF, and 550TB/year workload rating make this drive ideal for demanding 24/7 multi-bay NAS and enterprise RAID environments. Its CMR technology and specialized features like RV sensors are specifically engineered for these high-performance, high-reliability use cases.
If 28TB is excessive or you don't need the enterprise-grade workload rating, look for standard IronWolf drives with lower capacities and workload ratings.
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Pros
- 28TB capacity provides massive storage for extensive media libraries and critical backups.
- 5-year limited warranty and complimentary 3-year Rescue Data Recovery Services offer extensive protection.
- 2.5 million hours MTBF and 550TB/year workload rating indicate high endurance for continuous operation.
- All-CMR technology ensures consistent performance, especially in multi-drive RAID arrays.
- Rotational Vibration (RV) sensors and AgileArray firmware deliver stable performance in multi-bay environments.
- IronWolf Health Management provides proactive data protection with prevention and recovery recommendations.
Cons
- Seeking operations can produce noticeable noise, described by one user as similar to a 3.5-inch floppy disk.
- Optimized specifically for NAS/RAID, potentially requiring specific setup or being overkill for other uses.
- Higher price point compared to some other 28TB drives or non-Pro IronWolf models.
Dimension Scores
The 7200 RPM spindle speed and 512MB cache, with reported transfer speeds up to 270 MB/s, provide above-average performance for a mechanical hard drive in its category.
With a 2.5 million hours MTBF, 550TB/year workload rating, 5-year warranty, and 3-year data recovery services, this drive offers best-in-class reliability for an HDD.
28TB is among the highest capacities available for 3.5-inch internal HDDs, making it a best-in-class option for massive data storage needs.
Optimized specifically for NAS and RAID environments, it offers strong compatibility within that niche but might be less suitable for general desktop use.
Best For
- Multi-bay NAS systems requiring 24/7 operation and high data availability.
- Commercial and enterprise RAID storage solutions with demanding workload requirements.
- Media professionals and SMBs needing large-scale, always-on data access.
- On-premise AI model training where massive datasets are frequently accessed.
Not Recommended For
- Single-drive desktop PC storage without NAS/RAID setup, where its specialized features might be underutilized.
- Users sensitive to drive seek noise in quiet home or office environments.
- Budget-conscious users seeking the lowest cost per TB without the need for enterprise-grade features and reliability.
Watch Out For
- The drive's seek noise can be audible during active operations, with one user comparing it to a 1990s 3.5-inch floppy disk.
- While idle noise is minimal, the distinct seeking sound might be a concern for those placing the NAS in a living space.
- The product's explicit optimization for NAS systems means it might not be the most straightforward or cost-effective choice for general desktop use.
Full Specifications
| ASIN | B0FFBPK8T7 |
| Brand | Seagate |
| Color | NAS PRO |
| Series | ST28000NT000 |
| Language | English, English, English |
| Hard Drive | 28 TB Mechanical Hard Disk |
| Item Weight | 1.72 pounds |
| Manufacturer | Seagate |
| Special Feature | Data Recovery Service |
| Installation Type | Internal Hard Drive |
| Item model number | ST28000NT000 |
| Compatible Devices | Desktop |
| Product Dimensions | 8.75 x 7 x 2.95 inches |
| Hard Disk Interface | Serial ATA |
| Hard Drive Interface | Serial ATA |
| Hard Disk Description | Mechanical Hard Disk |
| Hard Disk Form Factor | 3.5 Inches |
| Item Dimensions LxWxH | 8.75 x 7 x 2.95 inches |
| Connectivity Technology | SATA |
| Digital Storage Capacity | 28 TB |
| Hard Drive Rotational Speed | 7200 |
What Buyers Say
The most striking feedback from users is about the drive's noise profile; while it's reported to be silent at idle, seeking operations can be quite audible, with one user likening it to a 1990s 3.5-inch floppy disk. Despite this, users acknowledge its high capacity and enterprise-grade features for NAS environments. The included 3-year Rescue Data Recovery Services are a frequently mentioned benefit, offering peace of mind for critical data.
“Man, this thing holds EVERYTHING, but when it's crunching numbers, it sounds like my old PC booting up. Still, 28TB and that recovery service? Worth it for my Plex server.”
Common Praise
- 28TB capacity provides massive storage for large media libraries and backups.
- 5-year warranty and 3-year data recovery services offer extensive protection.
- Quiet operation when the drive is idle.
- CMR technology delivers consistent performance in RAID/NAS setups.
- High workload rating of 550TB/year supports intensive 24/7 use.
Common Complaints
- Noticeable seek noise during active operations, compared to a floppy disk.
- Higher cost compared to some other high-capacity drives without the 'Pro' features.
- Specific optimization for NAS/RAID might make it less straightforward for non-NAS applications.
Ownership Tips
- The idle noise level is surprisingly low, making it less intrusive than expected when not actively writing or reading.
- The drive's weight and build feel substantial, suggesting durability for its intended 24/7 operation.
- Initial setup in a multi-bay NAS was straightforward, with the NAS recognizing the full 28TB capacity without issues.
- Monitoring with IronWolf Health Management provides useful insights into drive status and potential issues.
Frequently Asked Questions
Is this drive suitable for a regular desktop PC?
While it can physically fit, it's optimized for NAS/RAID systems and its enterprise features might be overkill or require specific setup for a single desktop PC.
How loud is this drive during operation?
Users report it's quiet when idle, but seeking operations can produce noticeable noise, described by one user as similar to a 3.5-inch floppy disk.
What does the 3-year Rescue Data Recovery Services cover?
It provides complimentary data recovery for accidental data corruption or drive damage, with an industry-leading 95% success rate.
What is CMR technology and why is it important for this drive?
CMR (Conventional Magnetic Recording) is a recording technology that writes data without overlapping tracks, ensuring consistent, predictable performance, especially important in multi-drive RAID arrays.
Can I use this drive in any NAS enclosure?
It's designed for multi-bay NAS systems and has been tested by leading NAS providers, but always verify compatibility with your specific NAS model to ensure optimal performance.
Buying Guide
When you're looking at a drive like this, you're buying serious storage for a serious setup, not just a place to dump photos. You need to think about how much data you're actually going to write and read every year, and if your system runs 24/7. The 'Pro' in IronWolf Pro means it's built for constant use in multi-drive systems, so don't overspend if you just need a basic backup drive.
Workload Rating (550TB/year)
This is like the drive's endurance rating – how much data you can write to and read from it annually without wearing it out prematurely. A 550TB/year rating means it's designed for heavy, continuous data transfers, far more than a typical desktop drive.
MTBF (Mean Time Between Failures) of 2.5 million hours
This number tells you the average expected operational lifespan before a failure might occur. A higher MTBF, like 2.5 million hours, indicates a drive engineered for extreme long-term reliability, crucial for systems that can't afford downtime.
CMR (Conventional Magnetic Recording)
CMR is a recording technology that writes data without overlapping tracks, ensuring consistent performance, especially during sustained writes and in RAID arrays. It's generally preferred over SMR (Shingled Magnetic Recording) for NAS and enterprise use where performance consistency is key.
Rescue Data Recovery Services (3 years)
This is like an insurance policy for your data. If the drive fails within three years, Seagate will attempt to recover your lost data at no additional cost, which can save you thousands if critical information is lost.
Alternatives
If you need less capacity or don't require 24/7 enterprise-grade reliability and workload, look for standard NAS drives with lower MTBF and workload ratings, or consider smaller capacity versions of the IronWolf Pro line.



