Verdict

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

WD161KFGX
WD Red Pro · 16TB · NAS-Pro
€828 (€51.75/TB)
WD161KRYZ
WD Gold · 16TB · Enterprise
No FR price yet

Value at a glance

Price / TB
WD161KFGX $40.94
WD161KRYZ $53.13
Capacity
WD161KFGX 16 TB
WD161KRYZ 16 TB
Noise (idle)
WD161KFGX 20 dB
WD161KRYZ 20 dB

Price history · FR, cheapest per day

WD161KFGX €828 WD161KRYZ €862
zoomed · drag to zoom
€1,147 €743 €338 Jul 2024 Dec 2024 May 2025 Oct 2025 Feb 2026 Jul 2026
WD161KFGX WD161KRYZ
Capacity 16 TB 16 TB
Recording tech CMR CMR
RAID / NAS safe Yes Yes
Class NAS-Pro Enterprise
Spindle speed 7200 RPM 7200 RPM
Cache 512 MB 512 MB
Noise (idle) 20 dB 20 dB
Fill Helium Helium
Interface SATA SATA
Failure rate (AFR) - -
Price / TB $40.94 $53.13
Buy
€828
View at Amazon →
No FR 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.

WD161KFGX

No Backblaze failure data for this model.

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

WD161KRYZ

No Backblaze failure data for this model.

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