Verdict

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

ST24000NM002H
Seagate Exos X24 · 24TB · Enterprise
$960 ($40.00/TB)
WD241KFGX
WD Red Pro · 24TB · NAS-Pro
$1,060 ($44.17/TB)

Value at a glance

Price / TB
ST24000NM002H $40.00
WD241KFGX $44.17
Capacity
ST24000NM002H 24 TB
WD241KFGX 24 TB
Noise (idle)
ST24000NM002H 30 dB
WD241KFGX 25 dB

Price history

US · cheapest per day

ST24000NM002H $960 WD241KFGX $1,060
zoomed · drag to zoom
$1,060 $750 $440 Aug 2024 Jan 2025 Jun 2025 Nov 2025 Apr 2026 Aug 2026
ST24000NM002H WD241KFGX
Capacity 24 TB 24 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) 30 dB 25 dB
Fill Helium Helium
Interface SATA SATA
Failure rate (AFR) 2.91% -
Price / TB $40.00 $44.17
Buy
$960
View at Amazon →
$1,060
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.

ST24000NM002H

2.91% AFR vs 1.34% fleet avg

95% CI 2.54-3.32%

9,605 drives · ~7,565 drive-years · 220 failures · Backblaze thru Q1 2026

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

WD241KFGX

No Backblaze failure data for this model.

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