Verdict

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

ST16000NM002G
Seagate Exos X16 · 16TB · Enterprise
£476 (£29.75/TB)
WD161KFGX
WD Red Pro · 16TB · NAS-Pro
£654 (£40.87/TB)

Value at a glance

Price / TB
ST16000NM002G $37.78
WD161KFGX $40.94
Capacity
ST16000NM002G 16 TB
WD161KFGX 16 TB
Noise (idle)
ST16000NM002G 29 dB
WD161KFGX 20 dB

Price history · UK, cheapest per day

ST16000NM002G £476 WD161KFGX £654
zoomed · drag to zoom
£1,023 £602 £182 Jul 2024 Dec 2024 May 2025 Oct 2025 Feb 2026 Jul 2026
ST16000NM002G WD161KFGX
Capacity 16 TB 16 TB
Recording tech CMR CMR
RAID / NAS safe Yes Yes
Class Enterprise NAS-Pro
Spindle speed 7200 RPM 7200 RPM
Cache 256 MB 512 MB
Noise (idle) 29 dB 20 dB
Fill Helium Helium
Interface SAS SATA
Failure rate (AFR) - -
Price / TB $37.78 $40.94
Buy
£476
View at Amazon →
£654
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.

ST16000NM002G

No Backblaze failure data for this model.

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

WD161KFGX

No Backblaze failure data for this model.

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