Verdict

For a NAS cache or write-heavy pool, the ZA4000NM1A002 is the safer pick - the CT4000P3PSSD8 uses QLC NAND, which wears out faster and slows badly under sustained writes (light, read-mostly use only).

CT4000P3PSSD8
Crucial P3 Plus · 4TB · Desktop
No CA price yet
ZA4000NM1A002
Seagate IronWolf 125 · 4TB · NAS
No CA price yet

Value at a glance

Endurance (TBW)
CT4000P3PSSD8 800 TB
ZA4000NM1A002 5,600 TB

Price history

CA · cheapest per day

CT4000P3PSSD8 C$808
zoomed · drag to zoom
C$1,010 C$654 C$298 Aug 2024 Jan 2025 May 2025 Oct 2025 Feb 2026 Jun 2026
CT4000P3PSSD8 ZA4000NM1A002
Capacity 4 TB 4 TB
Form factor M.2 2.5
Interface NVMe SATA
NAND type QLC TLC
Endurance (TBW) 800 TB 5,600 TB
DWPD - 0.7
DRAM cache No Yes
Power-loss protection No No
Sustained write - -
Cost / TBW $0.366 -
Price / TB $73.15 -
Buy No CA price yet No CA 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.

CT4000P3PSSD8

No Backblaze failure data for this model.

ZA4000NM1A002

No Backblaze failure data for this model.