I'm replacing a dns-320 with a Synology ds212j, for many reasons. (Abysmal beta-only firmware, etc. Note that back in April JavaLawyer asked dlink for a changelog for the latest beta, and they can't even supply that). Anyway, here's one test. Transfer a single 2gb file from pc, gigabit network connections, same model and size disk drive. Dsn-320, 16.8 MB/sec. Synology ds212j, 46.8 MB/sec.