Verdict

Both are comparable SSDs. The SEDC600M/7680G is rated for more write endurance than the SSDPF2KX076T1, so it's the longer-lasting choice for a NAS that sees steady writes; for light use either is fine and price decides.

SEDC600M/7680G SSDPF2KX076T1
Capacity 7.68 TB 7.68 TB
Form factor 2.5 U.2
Interface SATA NVMe
NAND type TLC TLC
Endurance (TBW) 14,016 TB 14,000 TB
DWPD 1.0 1.0
DRAM cache Yes Yes
Power-loss protection Yes Yes
Sustained write 530 MB/s 4,200 MB/s
Price / TB $491.84 $482.03

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.