Verdict

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

WD201KFGX
WD Red Pro · 20TB · NAS-Pro
$950 ($47.50/TB)
WD202KRYZ
WD Gold · 20TB · Enterprise
$729 ($36.46/TB)

Value at a glance

Price / TB
WD201KFGX $40.53
WD202KRYZ $36.46
Capacity
WD201KFGX 20 TB
WD202KRYZ 20 TB
Noise (idle)
WD201KFGX 20 dB
WD202KRYZ 20 dB

Price history

US · cheapest per day

WD201KFGX $950 WD202KRYZ $729
zoomed · drag to zoom
$1,236 $778 $320 Sep 2024 Feb 2025 Jul 2025 Nov 2025 Apr 2026 Sep 2026
WD201KFGX WD202KRYZ
Capacity 20 TB 20 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 $40.53 $36.46
Buy
$950
View at Amazon →
$729
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.

WD201KFGX

No Backblaze failure data for this model.

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

WD202KRYZ

No Backblaze failure data for this model.

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