Drive comparison
MG10ACA20TA vs WD203KRYZ
Toshiba MG10 20TB and Western Digital WD Gold 20TB, compared using published manufacturer specifications.
Toshiba
MG10 20TB
MG10ACA20TA
SATA 6 Gb/s · 3.5-inch
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Full specifications & all listings →Western Digital
WD Gold 20TB
WD203KRYZ
SATA 6Gb/s · 3.5-inch
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Amazon US · New listing ↗ASIN B0DF9FK544
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What differs between these models?
- Interface: MG10ACA20TA lists SATA 6 Gb/s; WD203KRYZ lists SATA 6Gb/s.
- Sustained transfer (up to MB/s): MG10ACA20TA lists 281; WD203KRYZ lists 285.
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 | MG10ACA20TA | WD203KRYZ |
|---|---|---|
| Manufacturer | Toshiba | Western Digital |
| Product family | MG10 | WD Gold |
| Model number | MG10ACA20TA | WD203KRYZ |
| Capacity (TB) | 20 | 20 |
| RPM | 7200 | 7200 |
| Interface | SATA 6 Gb/s | SATA 6Gb/s |
| Cache (MiB) | 512 | Not recorded |
| Form factor | 3.5-inch | 3.5-inch |
| Sector format | 4Kn | Not recorded |
| Workload rating (TB/year) | 550 | 550 |
| Manufacturer limited warranty | 5 years (eligible new drives) | 5 years (eligible new drives) |
| Sustained transfer (up to MB/s) | 281 | 285 |
| Recording | Not recorded | CMR |
| Cache (MB) | Not recorded | 512 |
| Logical sector size (bytes) | Not recorded | 512 |
| Physical sector size (bytes) | Not recorded | 4096 |
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
MG10ACA20TA
Toshiba MG10 manufacturer specifications ↗ · pages 4
Reviewed 2026-09-07. Published specifications; no independent benchmark or failure-rate claim.
WD203KRYZ
Western Digital WD Gold manufacturer datasheet ↗
Reviewed 2026-08-21. Published specifications; no independent benchmark or failure-rate claim.