Verdict

These are comparable SSDs. The LNM790X004T-RNNNU is rated for the most write endurance, so it lasts longest in a NAS that sees steady writes; for light use any is fine and price decides.

LNM790X004T-RNNNU
Lexar NM790 · 4TB · Desktop
€1,633 (€408.13/TB)
MZ-V9P4T0
Samsung 990 PRO · 4TB · Desktop
No DE price yet

Value at a glance

Price / TB
LNM790X004T-RNNNU $145.00
MZ-V9P4T0 $188.91
Endurance (TBW)
LNM790X004T-RNNNU 3,000 TB
MZ-V9P4T0 2,400 TB

Price history

DE · cheapest per day

LNM790X004T-RNNNU €1,633 MZ-V9P4T0 €594
zoomed · drag to zoom
€1,727 €991 €255 Oct 2024 Mar 2025 Jul 2025 Dec 2025 May 2026 Oct 2026
LNM790X004T-RNNNU MZ-V9P4T0
Capacity 4 TB 4 TB
Form factor M.2 M.2
Interface NVMe NVMe
NAND type TLC TLC
Endurance (TBW) 3,000 TB 2,400 TB
DWPD - -
DRAM cache No Yes
Power-loss protection No No
Sustained write - -
Cost / TBW $0.193 $0.315
Price / TB $145.00 $188.91
Buy
€1,633
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No DE 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.

LNM790X004T-RNNNU

No Backblaze failure data for this model.

MZ-V9P4T0

No Backblaze failure data for this model.