Verdict

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

ST12000NT001
Seagate IronWolf Pro · 12TB · NAS-Pro
C$700 (C$58.33/TB)
WD120EFBX
WD Red Plus · 12TB · NAS
C$370 (C$30.82/TB)

Value at a glance

Price / TB
ST12000NT001 $42.58
WD120EFBX $22.50
Capacity
ST12000NT001 12 TB
WD120EFBX 12 TB
Noise (idle)
ST12000NT001 28 dB
WD120EFBX 24 dB

Price history

CA · cheapest per day

ST12000NT001 C$809 WD120EFBX C$370
zoomed · drag to zoom
C$900 C$595 C$290 Nov 2024 Mar 2025 Aug 2025 Dec 2025 May 2026 Oct 2026
ST12000NT001 WD120EFBX
Capacity 12 TB 12 TB
Recording tech CMR CMR
RAID / NAS safe Yes Yes
Class NAS-Pro NAS
Spindle speed 7200 RPM 7200 RPM
Cache 256 MB 256 MB
Noise (idle) 28 dB 24 dB
Fill Helium Helium
Interface SATA SATA
Failure rate (AFR) - -
Price / TB $42.58 $22.50
Buy
C$700
View at Amazon →
C$370
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.

ST12000NT001

No Backblaze failure data for this model.

5yr warranty · 300 TB/yr rated · 1,200,000h MTBF

WD120EFBX

No Backblaze failure data for this model.

3yr warranty · 180 TB/yr rated · 1,000,000h MTBF