Verdict

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

ST12000VN0008
Seagate IronWolf · 12TB · NAS
C$555 (C$46.25/TB)
WD121KRYZ
WD Gold · 12TB · Enterprise
C$700 (C$58.29/TB)

Value at a glance

Price / TB
ST12000VN0008 $33.76
WD121KRYZ $38.70
Capacity
ST12000VN0008 12 TB
WD121KRYZ 12 TB

Price history · CA, cheapest per day

ST12000VN0008 C$555 WD121KRYZ C$700
zoomed · drag to zoom
C$737 C$506 C$275 Aug 2024 Dec 2024 May 2025 Oct 2025 Mar 2026 Jul 2026
ST12000VN0008 WD121KRYZ
Capacity 12 TB 12 TB
Recording tech CMR CMR
RAID / NAS safe Yes Yes
Class NAS Enterprise
Spindle speed 7200 RPM 7200 RPM
Cache 256 MB 256 MB
Noise (idle) - 20 dB
Fill Helium Helium
Interface SATA SATA
Failure rate (AFR) - -
Price / TB $33.76 $38.70
Buy
C$555
View at Amazon →
C$700
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.

ST12000VN0008

No Backblaze failure data for this model.

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

WD121KRYZ

No Backblaze failure data for this model.

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