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updates | March 05, 2026

4 pin Molex KK (PWM) CPU fan connector

I'm having difficulty determining which Molex KK connector is the standard 4 pin PWM connector seen on most chassis and CPU fans. Please help me identify so I can buy new crimp connectors to repair some fans.

1 Answer

It would appear that the connector and the Molex part numbers are defined here.

The Molex part number of receptacle is 47054-1000. The Molex part number of individual crimp contacts is 08-50-0114. The Molex part number of the header is 47053-1000.

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