4 Pin Aux connectors are used by some video cards to provide additional power to them via the power supply.
provide more power for the CPU
The purpose of a 4-pin auxiliary connector on a motherboard is to provide an additional 12V power supply to the processor.
To provide power to a circuit board or fan
24 pin connector is required to supply power to the motherboard.
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AUX
4-Pin Berg connector
If it as a 20 or 24 pin connector and a 4 pin connector then it is a ATX power supply.
A regular ATX motherboard uses a single 20-pin P1 connector with optional 4-pin auxillary power connector
4 pin and 6 pin. 6 pin provides power for the external device.
No, it has 3-pin mini XLR.
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