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
ST14000NM001G
Seagate Exos X16 · 14TB · Enterprise
No DE price yet

Value at a glance

Price / TB
HDWG31G $39.21
ST14000NM001G $34.71
Capacity
HDWG31G 16 TB
ST14000NM001G 14 TB
Noise (idle)
HDWG31G 20 dB
ST14000NM001G 29 dB

Price history

DE · cheapest per day

HDWG31G €780
zoomed · drag to zoom
€780 €533 €287 Sep 2024 Feb 2025 Jul 2025 Nov 2025 Apr 2026 Sep 2026
HDWG31G ST14000NM001G
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 256 MB
Noise (idle) 20 dB 29 dB
Fill Helium Helium
Interface SATA SATA
Failure rate (AFR) - 1.28%
Price / TB $39.21 $34.71
Buy No DE price yet No DE price yet

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

ST14000NM001G

1.28% AFR vs 1.41% fleet avg

95% CI 1.11-1.47%

10,455 drives · ~15,735 drive-years · 202 failures · Backblaze thru Q2 2026

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