Verdict

These are closely matched NAS drives of the same capacity - decide on price and warranty. Check the live $/TB above.

WD142KRYZ
WD Gold · 14TB · Enterprise
€767 (€54.81/TB)
WUH721414ALE6L4
WD Ultrastar DC HC530 · 14TB · Enterprise
€430 (€30.69/TB)

Value at a glance

Price / TB
WD142KRYZ $30.01
WUH721414ALE6L4 $33.14
Capacity
WD142KRYZ 14 TB
WUH721414ALE6L4 14 TB
Noise (idle)
WD142KRYZ 20 dB
WUH721414ALE6L4 20 dB

Price history · DE, cheapest per day

WD142KRYZ €767 WUH721414ALE6L4 €430
zoomed · drag to zoom
€1,083 €716 €348 Jul 2024 Dec 2024 May 2025 Oct 2025 Feb 2026 Jul 2026
WD142KRYZ WUH721414ALE6L4
Capacity 14 TB 14 TB
Recording tech CMR CMR
RAID / NAS safe Yes Yes
Class Enterprise 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) - 0.72%
Price / TB $30.01 $33.14
Buy
€767
View at Amazon →
€430
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.

WD142KRYZ

No Backblaze failure data for this model.

5yr warranty · 550 TB/yr rated · 2,500,000h MTBF

WUH721414ALE6L4

0.72% AFR vs 1.34% fleet avg

95% CI 0.57-0.90%

8,640 drives · ~10,734 drive-years · 77 failures · Backblaze thru Q1 2026

5yr warranty · 550 TB/yr rated · 2,500,000h MTBF