used on modern ATX / BTX motherboards


 

Pin Name   Color Description
1 COM   Black Ground
2 COM   Black Ground
3 +12VDC   Yellow +12 VDC
4 +12VDC   Yellow +12 VDC

Recommended wiresize 20 AWG


 

Replacement names for the
* motherboard part: MF-2x2 , MF-2x2 MRB
* cable mating part: MF-2x2 F. (mini-fit series)

4 pin MiniFit Jr 5557-4 (molex 39-29-9042) female connector layout
4 pin MiniFit Jr 5557-4 (molex 39-29-9042) female connector
at the motherboard
4 pin MiniFit Jr 5566-4 male connector layout
4 pin MiniFit Jr 5566-4 male connector
at the cable
According to 19 reports in our database (16 positive and 3 negative) this pinout should be correct.

Is this pinout
correct or incorrect?
Source(s) of this and additional information: ATX Spec v2.03 at Platform Development Support
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