3 pin and 4 pin Fan Wire Diagrams


3 pin Fan Connections
*cable coloring varies from fan to fan

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Pin Name Color Color Color Color
1 Ground Black Black Gray Black
2 +12v Red Black Gray Yellow
3 Tach/Signal/Sense Yellow Black Gray Green

4 pin Fan Connections
*cable coloring varies from fan to fan

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Pin Name Color Color Color Color
1 Ground Black Black Gray Black
2 +12v Red Black Gray Yellow
3 Tach/Signal/Sense Yellow Black Gray Green
4 Control/PWM Blue Black Gray Blue