Notice that the connector before order. Cooling Fan: 4.0 x4.0 x2.0 cm Compatible with: Synology RS814 RS814+ RS814RP+ RS212 RX418 Disk Station Package include: 1 X Cooling Fan Synology Fan Spare synology fan for your NAS system. Can be used as an additional fan to prevent your system from overheating and working beyond working capacity.
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