Qnap 92x92x25mm fan, 12V, 4PIN.
(TS-639, TS-412, TS-419P, TS-420, TS-421, TS-443 PRO, TS-453, TS-453 PRO, TS-459 PRO PLUS, NAS-453G, NAS-469G, TS-470, TVS-470, TS-470 Pro, TS-643 Pro, TS-651, TS-653, TS-653 Pro, TS-659 Pro, TS-669L, NAS-669G, TS-670, TVS-670, TS-670 Pro, NAS-670G, TVS-671, TES-1685, TS-1635AX, TS-1677X, TS-1685, TS-2888X, TS-328, TS-332X, TS-351, TS-653A, TS-653B, TS-653II, TS-673, TVS-663, TVS-672N, TVS-672XT, TVS-672X, TVS-673, TVS-673X, TVS-673e, VS-6012, VS-6318, VS-6336 )