Verdict

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

ST22000NM001E
Seagate Exos X22 · 22TB · Enterprise
£985 (£44.78/TB)
ST22000NT001
Seagate IronWolf Pro · 22TB · NAS-Pro
No UK price yet

Value at a glance

Price / TB
ST22000NM001E $32.40
ST22000NT001 $36.79
Capacity
ST22000NM001E 22 TB
ST22000NT001 22 TB
Noise (idle)
ST22000NM001E 29 dB
ST22000NT001 28 dB

Price history · UK, cheapest per day

ST22000NM001E £985 ST22000NT001 £387
zoomed · drag to zoom
£1,192 £781 £370 Jul 2024 Dec 2024 May 2025 Oct 2025 Feb 2026 Jul 2026
ST22000NM001E ST22000NT001
Capacity 22 TB 22 TB
Recording tech CMR CMR
RAID / NAS safe Yes Yes
Class Enterprise NAS-Pro
Spindle speed 7200 RPM 7200 RPM
Cache 512 MB 512 MB
Noise (idle) 29 dB 28 dB
Fill Helium Helium
Interface SATA SATA
Failure rate (AFR) - -
Price / TB $32.40 $36.79
Buy
£985
View at Amazon →
No UK 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.

ST22000NM001E

No Backblaze failure data for this model.

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

ST22000NT001

No Backblaze failure data for this model.

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