Are Seagate Exos drives good for a NAS?
Yes. Exos is Seagate's enterprise CMR line: 24/7 rated, high workload, often the lowest price per terabyte. It works well in a NAS and rebuilds cleanly. The trade-offs versus IronWolf are more noise and heat, higher idle power, and that NAS-specific features like Seagate IronWolf Health Management are not offered.
Last verified July 22, 2026 · 1 official source checked Updated
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Exos drives are enterprise CMR drives, and they make excellent NAS drives: frequently the cheapest per terabyte way to fill a NAS with reliable CMR storage.
Why they work well
- CMR across the range: no SMR rebuild problems.
- 24/7 enterprise duty with very high workload ratings (typically 550 TB/yr) and a 5-year warranty.
- Strong value: enterprise capacities often undercut NAS-branded drives per terabyte.
The trade-offs
- Noise and heat: 7200 rpm enterprise drives are louder and run warmer than 5400-class NAS drives, noticeable in a living space.
- Power: higher idle and active draw, which adds up in an always-on NAS.
- No NAS-specific health tools: features like Seagate's IronWolf Health Management are tied to IronWolf, not Exos. Standard SMART monitoring still works everywhere.
Who should buy them
If your NAS lives in a basement, closet or rack and you want maximum terabytes per dollar, Exos is a great pick. If it sits on a desk in a quiet room, an IronWolf or WD Red Plus is worth the small premium for lower noise. The table lists in-stock enterprise and NAS CMR drives by price per terabyte.
Seagate Exos (enterprise CMR) drives in stock, by CA$/TB
Live Amazon.ca prices in CAD, ranked by price per terabyte. The Recording column is verified against manufacturer documentation. Prices checked
| Model | Capacity | Recording | Price | CA$/raw TB | |
|---|---|---|---|---|---|
 Seagate Exos X22 22TB SATA 6Gb/s 7200RPM 3.5" Enterprise Hard Drive - ST22000NM001ENewbest price per TB CMR recording, SATA enterprise drive Amazon.ca · sold by ServerPartDeals · one bare internal drive; shipping and taxes not included · checked Oct 7, 2026CA$1,108Buy on Amazon | 22 TB | CMR ✓ | CA$1,108 | CA$50.38/TB | Buy on Amazon |
 Seagate Exos M 28TB Enterprise Internal Hard Drive HDD - 3.5in 6GB/s SATA 7200RPM 2.5M MTBF (ST28000NM003K)New CMR recording, SATA enterprise drive Amazon.ca · sold by Amazon.ca · one bare internal drive; shipping and taxes not included · checked Oct 7, 2026CA$1,543Buy on Amazon | 28 TB | CMR ✓ | CA$1,543 | CA$55.11/TB | Buy on Amazon |
 Seagate Exos X24 ST20000NM002H 20TBNew CMR recording, SATA enterprise drive Amazon.ca · sold by THEKEYKEY · one bare internal drive; shipping and taxes not included · checked Oct 7, 2026CA$1,165Buy on Amazon | 20 TB | CMR ✓ | CA$1,165 | CA$58.25/TB | Buy on Amazon |
 Seagate Exos X24 24TB Enterprise Internal Hard Drive HDD - 6GB/s SATA 7200RPM 2.5M MTBF (ST24000NM002H)New CMR recording, SATA enterprise drive Amazon.ca · sold by THEKEYKEY · one bare internal drive; shipping and taxes not included · checked Oct 7, 2026CA$1,400Buy on Amazon | 24 TB | CMR ✓ | CA$1,400 | CA$58.33/TB | Buy on Amazon |
 Seagate Exos 7E10 ST4000NM000B 4TB 512N SATA 6Gb/s 7200RPM 256MB Enterprise Hard DriveNew CMR recording, SATA enterprise drive Amazon.ca · sold by Grakolver · one bare internal drive; shipping and taxes not included · checked Oct 7, 2026CA$325Buy on Amazon | 4 TB | CMR ✓ | CA$325 | CA$81.25/TB | Buy on Amazon |
Seagate Exos 7E10 ST2000NM017B - Hard Drive - 2 TB - SATA 6Gb/sNew CMR recording, SATA enterprise drive Amazon.ca · sold by Grakolver · one bare internal drive; shipping and taxes not included · checked Oct 7, 2026CA$239Buy on Amazon | 2 TB | CMR ✓ | CA$239 | CA$119.50/TB | Buy on Amazon |
 Seagate Enterprise Capacity ST2000NM000A 2TB 7200RPM SATA 6.0 GB/s 256MB Enterprise Hard Drive (3.5 inch, Exos 7E8 HDD 512N SATA)New CMR recording, SATA enterprise drive Amazon.ca · sold by Grakolver · one bare internal drive; shipping and taxes not included · checked Oct 7, 2026CA$272Buy on Amazon | 2 TB | CMR ✓ | CA$272 | CA$136.00/TB | Buy on Amazon |
 Seagate Exos 1TB Internal Hard Drive Enterprise HDD – 3.5 Inch 6Gb/s 7200 RPM 128MB Cache for Enterprise, Data Center – Frustration Free Packaging (ST1000NM0008)New CMR recording, SATA enterprise drive Amazon.ca · sold by Grakolver · one bare internal drive; shipping and taxes not included · checked Oct 7, 2026CA$179Buy on Amazon | 1 TB | CMR ✓ | CA$179 | CA$179.00/TB | Buy on Amazon |
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Sources
Every technical claim on this page is checked against manufacturer and standards documentation. Dates are when each source was last reviewed.
- Seagate: IronWolf / SkyHawk product documentation (CMR) (checked 2026-07-22)