HDWG440 vs WD40EZAZ
NAS drive head-to-head - specs, value and live price side by side.
Verdict
For a NAS or any RAID array, the HDWG440 is the pick - it's CMR. The WD40EZAZ uses SMR recording, which is not recommended for RAID (single-drive or archival use only).
Value at a glance
Price / TB
HDWG440
$63.96
WD40EZAZ
$55.06
Capacity
HDWG440
4 TB
WD40EZAZ
4 TB
Noise (idle)
HDWG440
20 dB
WD40EZAZ
23 dB
Price history
CA · cheapest per day
HDWG440 C$272
WD40EZAZ C$302
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| HDWG440 | WD40EZAZ | |
|---|---|---|
| Capacity | 4 TB | 4 TB |
| Recording tech | CMR | SMR |
| RAID / NAS safe | Yes | No |
| Class | NAS | Desktop |
| Spindle speed | 7200 RPM | 5400 RPM |
| Cache | 256 MB | 256 MB |
| Noise (idle) | 20 dB | 23 dB |
| Fill | Air | Air |
| Interface | SATA | SATA |
| Failure rate (AFR) | - | - |
| Price / TB | $63.96 | $55.06 |
| Buy | No CA price yet |
C$302
View at Amazon →
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Highlighted cells mark the stronger spec for a NAS build. Failure rates from Backblaze Drive Stats where available; $/TB uses the cheapest live price. Buy links are Amazon affiliate.
HDWG440
No Backblaze failure data for this model.
3yr warranty · 180 TB/yr rated · 1,000,000h MTBF
WD40EZAZ
No Backblaze failure data for this model.
2yr warranty