USB to 3/4-Pin 5V PWM CPU Case Fan Connector USB to 3Pin/4Pin with ON/Off Toggle
4,24 €
Interface: motherboard 4pin connector at both ends, USB interface at the other end. Connector: One is USB port, another one is small 3 pin / 4 pin case fan power adapter cable port. The chassis fan uses this USB adapter cable, the fan speed will be reduced by 60%.
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