WD142KFGX vs WUH721414ALE6L4
NAS drive head-to-head - specs, value and live price side by side.
Verdict
These are closely matched NAS drives of the same capacity - decide on price and warranty. Check the live $/TB above.
Value at a glance
Price / TB
WD142KFGX
$44.84
WUH721414ALE6L4
$29.48
Capacity
WD142KFGX
14 TB
WUH721414ALE6L4
14 TB
Noise (idle)
WD142KFGX
20 dB
WUH721414ALE6L4
20 dB
Price history
UK · cheapest per day
WD142KFGX £697
WUH721414ALE6L4 £395
zoomed ·
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| WD142KFGX | WUH721414ALE6L4 | |
|---|---|---|
| Capacity | 14 TB | 14 TB |
| Recording tech | CMR | CMR |
| RAID / NAS safe | Yes | Yes |
| Class | NAS-Pro | Enterprise |
| Spindle speed | 7200 RPM | 7200 RPM |
| Cache | 512 MB | 512 MB |
| Noise (idle) | 20 dB | 20 dB |
| Fill | Helium | Helium |
| Interface | SATA | SATA |
| Failure rate (AFR) | - | 0.78% |
| Price / TB | $44.84 | $29.48 |
| Buy |
£697
View at Amazon →
|
£395
View at Amazon →
|
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.
WD142KFGX
No Backblaze failure data for this model.
5yr warranty · 300 TB/yr rated · 1,000,000h MTBF
WUH721414ALE6L4
0.78% AFR vs 1.41% fleet avg
95% CI 0.63-0.94%
8,548 drives · ~12,880 drive-years · 100 failures · Backblaze thru Q2 2026
5yr warranty · 550 TB/yr rated · 2,500,000h MTBF