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Would anyone be able to explain this fan header? It's classed as a system fan header with 4 pins. However the wall around the pins is preventing me to plug my fan
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![identification - What is the name of this connector from a fan? - Electrical Engineering Stack Exchange identification - What is the name of this connector from a fan? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/ybVmk.png)