Drive comparison
ST22000NM001E vs WD221KRYZ
Seagate Exos X22 22TB and Western Digital WD Gold 22TB, compared using published manufacturer specifications.
Seagate
Exos X22 22TB
ST22000NM001E
SATA 6 Gb/s · 3.5-inch
$719.99
Amazon US · Used / renewed listing ↗ASIN B0C3B2MVLJ · as of Oct 27, 2026 13:34 UTC
Full specifications & all listings →
Western Digital
WD Gold 22TB
WD221KRYZ
SATA 6Gb/s · 3.5-inch
$1,045.33
Amazon US · New listing ↗ASIN B0B5W2ZM58 · as of Oct 27, 2026 13:32 UTC
Full specifications & all listings →As an Amazon Associate I earn from qualifying purchases. Match the selected variant, condition and seller terms before ordering.
What differs between these models?
- Interface: ST22000NM001E lists SATA 6 Gb/s; WD221KRYZ lists SATA 6Gb/s.
- Sustained transfer (up to MB/s): ST22000NM001E lists 285; WD221KRYZ lists 291.
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 | ST22000NM001E | WD221KRYZ |
|---|---|---|
| Manufacturer | Seagate | Western Digital |
| Product family | Exos X22 | WD Gold |
| Model number | ST22000NM001E | WD221KRYZ |
| Capacity (TB) | 22 | 22 |
| RPM | 7200 | 7200 |
| Interface | SATA 6 Gb/s | SATA 6Gb/s |
| Recording | CMR | CMR |
| Cache (MB) | 512 | 512 |
| Form factor | 3.5-inch | 3.5-inch |
| Average idle power (W) | 5.74 | Not recorded |
| Power-on hours per year | 8760 | Not recorded |
| Manufacturer limited warranty | 5 years (eligible new drives) | 5 years (eligible new drives) |
| Sustained transfer (up to MB/s) | 285 | 291 |
| Workload rating (TB/year) | Not recorded | 550 |
| Logical sector size (bytes) | Not recorded | 512 |
| Physical sector size (bytes) | Not recorded | 4096 |
Compatibility and buying checks
- Compare new and renewed offers separately. The manufacturer specification does not guarantee the warranty or return policy of a marketplace seller.
Manufacturer sources
ST22000NM001E
Seagate Exos X22 manufacturer specifications ↗ · pages 2
CMR recording specification ↗ · checked 2026-10-02
Reviewed 2026-09-07. Published specifications; no independent benchmark or failure-rate claim.
WD221KRYZ
Western Digital WD Gold manufacturer datasheet ↗
Reviewed 2026-08-21. Published specifications; no independent benchmark or failure-rate claim.