Verdict

Both are comparable SSDs. The MTFDDAK960TGA is rated for more write endurance than the ZP500NM3A002, so it's the longer-lasting choice for a NAS that sees steady writes; for light use either is fine and price decides.

MTFDDAK960TGA ZP500NM3A002
Capacity 0.96 TB 0.5 TB
Form factor 2.5 M.2
Interface SATA NVMe
NAND type TLC TLC
Endurance (TBW) 2,628 TB 700 TB
DWPD 1.5 0.7
DRAM cache Yes -
Power-loss protection Yes No
Sustained write 540 MB/s 525 MB/s
Price / TB $1,005.91 -

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.