Verdict

These are comparable NAS drives. The HDWG31G offers the most capacity (16TB), so it's the better value if you need the space; otherwise they're closely matched - decide on the live $/TB above.

HDWG31G
Toshiba N300 · 16TB · NAS
No DE price yet
WUH721414ALE6L4
WD Ultrastar DC HC530 · 14TB · Enterprise
€493 (€35.22/TB)

Value at a glance

Price / TB
HDWG31G $39.21
WUH721414ALE6L4 $38.03
Capacity
HDWG31G 16 TB
WUH721414ALE6L4 14 TB
Noise (idle)
HDWG31G 20 dB
WUH721414ALE6L4 20 dB

Price history

DE · cheapest per day

HDWG31G €780 WUH721414ALE6L4 €493
zoomed · drag to zoom
€789 €538 €287 Sep 2024 Feb 2025 Jul 2025 Dec 2025 Apr 2026 Sep 2026
HDWG31G WUH721414ALE6L4
Capacity 16 TB 14 TB
Recording tech CMR CMR
RAID / NAS safe Yes Yes
Class NAS 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 $39.21 $38.03
Buy No DE price yet
€493
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.

HDWG31G

No Backblaze failure data for this model.

3yr warranty · 180 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