EN-Labs PC Fan Speed Controller - 8 Way Cooling Fan Hub w/ 7/12V Voltage Switch - 1 to 8 Multi Way Splitter for 3-Pin / 4 Pin Case Fan - PCB.

8 ports 3pin fan support Back with adhesive to fixed to the chassis hub. manually HIGH speed( 12V) or low speed (7V) start the fan, and off for fans shut down Power by Molex 4pin