The most common color coding for this specific Foxconn model uses Black, Yellow, Green, and Blue Wire Color Description Ground (0V) The common negative return. +12V Power The main power supply for the motor. Sense (Tach) Outputs a pulse signal to monitor fan RPM. Control (PWM) Input signal to adjust fan speed (0.4V Low / >2.8V High). Operational Highlights 4 Wire PC Fan - EDN Network

(e.g., black/red/yellow/blue is standard, but some OEM Foxconn fans vary), please describe the wire colors and number of pins. I can help you identify them based on typical electronics logic (GND is usually black, +12V is red or sometimes white on very old fans).

Receives the control signal from the motherboard to adjust fan speed. OEM Variations to Watch For