Cosmos II molex cable



The Molex Cable You're Talking About Is Actually A 3-pin Chassis Fan Connector If The Cable Was From The Fan Or A 3-Pin Molex
Used For A Peripheral
 


If Its A Fan Controller Then You'll Need To Connect It To The Fan Or It May Be Used To Power The Fan Controller In Order To Use It :)

-Happy To Help 😀

(rayner428)