Amazon.com: 4-Pin (Actral 2-Pin) Molex to 4 x 3 Pin / 4 Pin PMW 12V PC Case Fan Power Adapter Cable, 3-Pin or 4-Pin (PWM Connector) to Molex Computer Cooler Cooling Fan
Molex, 12 Circuit Connector -2 Complete Set- Wire Conn. with Pins - Molex Mini-Fit Jr ™: Amazon.com: Industrial & Scientific