WD40EZAZ
WD Blue · 4TB
SMR
✗ SMR - avoid for RAID / NAS
$276
($68.98/TB)
Best price at Amazon · US
Last checked Jul 21, 2026 · Price and availability subject to change.
Specifications
- Capacity
- 4 TB
- Technology
- SMR
- Class
- Desktop
- RPM
- 5400
- Cache
- 256 MB
- Noise (idle / seek)
- 23 / 27 dB
- Fill
- Air
- Interface
- SATA
- Form factor
- 3.5"
- Data confidence
- High
Reliability
No large-scale failure-rate data - Backblaze tracks mostly datacenter-class drives, so consumer/SMR models rarely appear. Reliability rankings →
Warranty2 years
Desktop drive - not rated for NAS, RAID or 24/7 operation.
Manufacturer-rated specs (Manufacturer spec), not observed failure data.
Price history
US · cheapest per day
$276 latest
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