Verdict

For a NAS cache or write-heavy pool, the MZ-V9P4T0 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
£652 (£163.06/TB)
MZ-V9P4T0
Samsung 990 PRO · 4TB · Desktop
£549 (£137.24/TB)

Value at a glance

Price / TB
CT4000P3PSSD8 $73.15
MZ-V9P4T0 $160.31
Endurance (TBW)
CT4000P3PSSD8 800 TB
MZ-V9P4T0 2,400 TB

Price history

UK · cheapest per day

CT4000P3PSSD8 £652 MZ-V9P4T0 £549
zoomed · drag to zoom
£662 £417 £172 Aug 2024 Jan 2025 Jun 2025 Nov 2025 Mar 2026 Aug 2026
CT4000P3PSSD8 MZ-V9P4T0
Capacity 4 TB 4 TB
Form factor M.2 M.2
Interface NVMe NVMe
NAND type QLC TLC
Endurance (TBW) 800 TB 2,400 TB
DWPD - -
DRAM cache No Yes
Power-loss protection No No
Sustained write - -
Cost / TBW $0.366 $0.267
Price / TB $73.15 $160.31
Buy
£652
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£549
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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.

MZ-V9P4T0

No Backblaze failure data for this model.