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
C$1,069 (C$66.81/TB)
WUH721414ALE6L4
WD Ultrastar DC HC530 · 14TB · Enterprise
C$888 (C$63.40/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

CA · cheapest per day

HDWG31G C$1,069 WUH721414ALE6L4 C$888
zoomed · drag to zoom
C$1,102 C$809 C$516 Apr 2025 Jul 2025 Nov 2025 Feb 2026 Jun 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
C$1,069
View at Amazon →
C$888
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