Verdict

These are comparable SSDs. The ZP500NM3A002 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.

WDS500G1R0C
WD Red SN700 · 0.5TB · NAS
No ES price yet
ZP500NM3A002
Seagate IronWolf 525 · 0.5TB · NAS
No ES price yet

Value at a glance

Endurance (TBW)
WDS500G1R0C 1,000 TB
ZP500NM3A002 700 TB

Price history

ES · cheapest per day

WDS500G1R0C €122
zoomed · drag to zoom
€141 €98 €55 Aug 2024 Dec 2024 Mar 2025 Jul 2025 Oct 2025 Feb 2026
WDS500G1R0C ZP500NM3A002
Capacity 0.5 TB 0.5 TB
Form factor M.2 M.2
Interface NVMe NVMe
NAND type TLC TLC
Endurance (TBW) 1,000 TB 700 TB
DWPD - 0.7
DRAM cache Yes -
Power-loss protection No No
Sustained write - 525 MB/s
Cost / TBW $0.215 -
Price / TB $429.98 -
Buy No ES price yet No ES 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.

WDS500G1R0C

No Backblaze failure data for this model.

ZP500NM3A002

No Backblaze failure data for this model.