3 Reasons to Skip ECC RAM in a Non-Critical NAS
The risk is tiny for non-critical data For media libraries, game saves, or old documents, the chance of a bit flip causing real damage is very small. You will never notice a flipped bit in a movie file.
ECC RAM is expensive and limits hardware choices ECC RAM costs more and forces you into server-grade CPUs and motherboards. For a small NAS running Plex or Kodi, non-ECC RAM is fine.
ZFS already catches most corruption ZFS’s checksumming will detect and correct most data corruption anyway. Spend your money on more storage or a good UPS instead.