Verdict

For a NAS or any RAID array, the ST4000NT001 is the pick - it's CMR. The DT02ABA400 uses SMR recording, which is not recommended for RAID (single-drive or archival use only).

DT02ABA400
Toshiba DT02 · 4TB · Desktop
No US price yet
ST4000NT001
Seagate IronWolf Pro · 4TB · NAS-Pro
$270 ($67.50/TB)

Value at a glance

Capacity
DT02ABA400 4 TB
ST4000NT001 4 TB

Price history · US, cheapest per day

DT02ABA400 $334 ST4000NT001 $270
zoomed · drag to zoom
$414 $272 $130 Mar 2025 Jun 2025 Sep 2025 Jan 2026 Apr 2026 Jul 2026
DT02ABA400 ST4000NT001
Capacity 4 TB 4 TB
Recording tech SMR CMR
RAID / NAS safe No Yes
Class Desktop NAS-Pro
Spindle speed 5400 RPM 7200 RPM
Cache 128 MB 256 MB
Noise (idle) - 28 dB
Fill Air Air
Interface SATA SATA
Failure rate (AFR) - -
Price / TB - $58.74
Buy No US price yet
$270
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.

DT02ABA400

No Backblaze failure data for this model.

2yr warranty

ST4000NT001

No Backblaze failure data for this model.

5yr warranty · 300 TB/yr rated · 1,200,000h MTBF