Drive comparison
HDWD240UZSVA vs WD40EZAX
Toshiba P300 4TB and Western Digital WD Blue 4TB, compared using published manufacturer specifications.
Toshiba
P300 4TB
HDWD240UZSVA
SATA 6 Gb/s · 3.5-inch
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Amazon US · New listing ↗ASIN B08LTDY8Q7
Full specifications & all listings →Western Digital
WD Blue 4TB
WD40EZAX
SATA 6Gb/s · 3.5-inch
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Amazon US · Used / renewed listing ↗ASIN B0CX5LX5GJ
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: HDWD240UZSVA lists SATA 6 Gb/s; WD40EZAX lists SATA 6Gb/s.
- Recording: HDWD240UZSVA lists SMR; WD40EZAX lists CMR.
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 | HDWD240UZSVA | WD40EZAX |
|---|---|---|
| Manufacturer | Toshiba | Western Digital |
| Product family | P300 | WD Blue |
| Model number | HDWD240UZSVA | WD40EZAX |
| Capacity (TB) | 4 | 4 |
| Interface | SATA 6 Gb/s | SATA 6Gb/s |
| Recording | SMR | CMR |
| Form factor | 3.5-inch | 3.5-inch |
| Package / region | Bulk / EMEA | Not recorded |
| Manufacturer limited warranty | 2 years (eligible new drives) | 2 years (eligible new drives) |
| RPM | Not recorded | 5400 |
| Cache (MB) | Not recorded | 256 |
| Physical sector size (bytes) | Not recorded | 4096 |
| Sustained transfer (up to MB/s) | Not recorded | 180 |
Compatibility and buying checks
- One or both drives use SMR recording. Check sustained-write and array requirements before choosing one for a NAS or a write-heavy workload.
- Compare new and renewed offers separately. The manufacturer specification does not guarantee the warranty or return policy of a marketplace seller.
Manufacturer sources
HDWD240UZSVA
Toshiba P300 manufacturer specifications ↗
SMR recording specification ↗ · checked 2026-10-02
Reviewed 2026-09-07. Published specifications; no independent benchmark or failure-rate claim.
WD40EZAX
Western Digital WD Blue manufacturer datasheet ↗
Reviewed 2026-08-21. Published specifications; no independent benchmark or failure-rate claim.