Drive comparison
ST20000NT001 vs MG10ACA20TA
Seagate IronWolf Pro 20TB and Toshiba MG10 20TB, compared using published manufacturer specifications.
Seagate
IronWolf Pro 20TB
ST20000NT001
SATA 6 Gb/s · 3.5-inch
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Full specifications & all listings →Toshiba
MG10 20TB
MG10ACA20TA
SATA 6 Gb/s · 3.5-inch
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What differs between these models?
- Sustained transfer (up to MB/s): ST20000NT001 lists 285; MG10ACA20TA lists 281.
A larger cache, higher RPM or higher advertised sequential speed alone does not establish which drive is better for your workload.
Specifications side by side
| Specification | ST20000NT001 | MG10ACA20TA |
|---|---|---|
| Manufacturer | Seagate | Toshiba |
| Product family | IronWolf Pro | MG10 |
| Model number | ST20000NT001 | MG10ACA20TA |
| Capacity (TB) | 20 | 20 |
| RPM | 7200 | 7200 |
| Interface | SATA 6 Gb/s | SATA 6 Gb/s |
| Recording | CMR | Not recorded |
| Cache (MB) | 256 | Not recorded |
| Form factor | 3.5-inch | 3.5-inch |
| Power-on hours per year | 8760 | Not recorded |
| Workload rating (TB/year) | 550 | 550 |
| Average operating power (W) | 7.7 | Not recorded |
| Rotational vibration sensors | Yes | Not recorded |
| Manufacturer limited warranty | 5 years (eligible new drives) | 5 years (eligible new drives) |
| Sustained transfer (up to MB/s) | 285 | 281 |
| Cache (MiB) | Not recorded | 512 |
| Sector format | Not recorded | 4Kn |
Compatibility and buying checks
- Check sector-format support in the controller and operating system, particularly for native 4K (4Kn) variants.
- Compare new and renewed offers separately. The manufacturer specification does not guarantee the warranty or return policy of a marketplace seller.
Manufacturer sources
ST20000NT001
Seagate IronWolf Pro manufacturer specifications ↗ · pages 2
Reviewed 2026-09-07. Published specifications; no independent benchmark or failure-rate claim.
MG10ACA20TA
Toshiba MG10 manufacturer specifications ↗ · pages 4
Reviewed 2026-09-07. Published specifications; no independent benchmark or failure-rate claim.