StarTech's TX3 to LP4 Power Y Splitter Fan Adapter Cable (12") lets you connect your CPU fan directly to the computer power supply, instead of connecting it to the designated motherboard port.
The adapter cable features a TX3 connector for connecting to the CPU fan, as well as a female LP4 connection to the computer power supply and an extra LP4 male connector that compensates for the use of the LP4 connector used to connect to the power supply.
LP4 (4 pin; Molex Large Drive Power) Male
LP4 (4 pin; Molex Large Drive Power) Female
Molex Fan (3 pin; TX3) Male