Verdict

These are comparable SSDs. The SFYRD/4000G 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.

MZ-VAP4T0BW
Samsung 9100 PRO · 4TB · Desktop
$981 ($245.34/TB)
SFYRD/4000G
Kingston Fury Renegade · 4TB · Desktop
No US price yet

Value at a glance

Price / TB
MZ-VAP4T0BW $245.34
SFYRD/4000G $264.05
Endurance (TBW)
MZ-VAP4T0BW 2,400 TB
SFYRD/4000G 4,000 TB

Price history

US · cheapest per day

MZ-VAP4T0BW $981 SFYRD/4000G $1,079
zoomed · drag to zoom
$1,177 $716 $255 Nov 2024 Mar 2025 Aug 2025 Jan 2026 Jun 2026 Nov 2026
MZ-VAP4T0BW SFYRD/4000G
Capacity 4 TB 4 TB
Form factor M.2 M.2
Interface NVMe NVMe
NAND type TLC TLC
Endurance (TBW) 2,400 TB 4,000 TB
DWPD - -
DRAM cache Yes Yes
Power-loss protection No No
Sustained write - -
Cost / TBW $0.409 $0.264
Price / TB $245.34 $264.05
Buy
$981
View at Amazon →
No US 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.

MZ-VAP4T0BW

No Backblaze failure data for this model.

SFYRD/4000G

No Backblaze failure data for this model.