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
$715 ($44.69/TB)
WD161KRYZ
WD Gold · 16TB · Enterprise
$1,003 ($62.67/TB)

Value at a glance

Price / TB
WD161KFGX $44.69
WD161KRYZ $59.22
Capacity
WD161KFGX 16 TB
WD161KRYZ 16 TB
Noise (idle)
WD161KFGX 20 dB
WD161KRYZ 20 dB

Price history

US · cheapest per day

WD161KFGX $715 WD161KRYZ $1,003
zoomed · drag to zoom
$1,146 $713 $280 Nov 2024 Mar 2025 Aug 2025 Jan 2026 Jun 2026 Nov 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 $44.69 $59.22
Buy
$715
View at Amazon →
$1,003
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.

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