PWM Fan Splitter Cable Hub 1 to 4 Power Adpater,Motherboard PMW 4-pin Fan Sleeved Braided Y Splitter Internal Power Extension Cable for Computer CPU/Case Fan 1x4 Converter - 10 inches - Newegg.com
ID-COOLING SE-214-XT ARGB CPU Cooler 4 Heatpipes CPU Air Cooler Addressable RGB Light Sync with Motherboard(5V 3-PIN Connector) CPU Fan for Intel/AMD, LGA 1700 Compatible - NWCA Inc.
4-Wire fans
Updated F8025 80mm Computer Cooler Fan 3 Pin Desktop Cooling Fan Oil Bearing DC 12V Brushless Exhaust Fan for PC Case|Fans & Cooling| - AliExpress