Verdict

Both are comparable SSDs. The MTFDDAK1T9TGA is rated for more write endurance than the MZ-V7S1T0, so it's the longer-lasting choice for a NAS that sees steady writes; for light use either is fine and price decides.

MTFDDAK1T9TGA MZ-V7S1T0
Capacity 1.92 TB 1 TB
Form factor 2.5 M.2
Interface SATA NVMe
NAND type TLC TLC
Endurance (TBW) 5,256 TB 600 TB
DWPD 1.5 -
DRAM cache Yes Yes
Power-loss protection Yes No
Sustained write 540 MB/s -
Price / TB $1,468.43 $229.11

Highlighted cells mark the stronger spec for a NAS build. Failure rates from Backblaze Drive Stats where available; $/TB uses the cheapest live price where available.