WDS400T2R0A vs ZA4000NM1A002
WD WDS400T2R0A (4TB) versus Seagate ZA4000NM1A002 (4TB)
Verdict
Both are comparable SSDs. The ZA4000NM1A002 is rated for more write endurance than the WDS400T2R0A, so it's the longer-lasting choice for a NAS that sees steady writes; for light use either is fine and price decides.
| WDS400T2R0A | ZA4000NM1A002 | |
|---|---|---|
| Capacity | 4 TB | 4 TB |
| Form factor | 2.5 | 2.5 |
| Interface | SATA | SATA |
| NAND type | TLC | TLC |
| Endurance (TBW) | 2,500 TB | 5,600 TB |
| DWPD | - | 0.7 |
| DRAM cache | Yes | Yes |
| Power-loss protection | No | No |
| Sustained write | - | - |
| Price / TB | $212.50 | - |
Highlighted cells mark the stronger spec for a NAS build. Failure rates from Backblaze Drive Stats where available; $/TB uses the cheapest live price where available.