WD121KFBX
WD Red Pro · 12TB
CMR
✓ RAID-safe (CMR)
£517
(£43.09/TB)
Best price at Amazon · UK
Last checked Jul 24, 2026 · Price and availability subject to change.
Specifications
- Capacity
- 12 TB
- Technology
- CMR
- Class
- NAS-Pro
- RPM
- 7200
- Cache
- 256 MB
- Noise (idle / seek)
- 20 / 36 dB
- Fill
- Helium
- Interface
- SATA
- Form factor
- 3.5"
- Data confidence
- High
Reliability
No large-scale failure-rate data - Backblaze tracks mostly datacenter-class drives, so consumer/SMR models rarely appear. Reliability rankings →
Warranty5 years
Rated workload300 TB/yr
MTBF1,000,000 hrs
Pro NAS drive rated for up to 24-bay arrays and 24/7 operation.
Manufacturer-rated specs (Manufacturer spec), not observed failure data.
Price history
UK · cheapest per day
£517 latest
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