These SPARK MAX PWM cables have a JST-PH 4-pin connector on one end, and a 0.1" 3-pin female PWM connector on the other. They are designed to convert the SPARK MAX's PWM/CAN port to a standard 3-pin PWM port on a robot controller. The black wire should be connected to the PWM port ground and pin the white wire should be connected to the PWM port signal pin.

For more information on the SPARK MAX control interfaces, please see the SPARK MAX User's Manual.