Amazon.com: 2 Pack 4-Pin Molex (Actual 2-Pin) to 2 x 3 Pin / 4 Pin PMW 12V PC Case Fan Power Adapter Cable, 3-Pin or 4-Pin (PWM Connector) to Molex Computer Cooler
2 Circuit) Molex, Receptacle Housing w/Female Crimp Terminals,- 18-24 AWG, Mini-Fit Jr ™ (Pack of 10): Amazon.com: Industrial & Scientific