Pinouts of Connectors

Standard PC peripheral power pinout

layout
schematic diagram
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Used for harddisks & 5.25 floppy drives

4 pin Molex power connector pin-out & layout
4 pin Molex power connector  at the powersupply cable
Pin Name   Color Description
1 +12V   Yellow +12 VDC
2 GND   Black +12 V Ground (Same as +5 V Ground)
3 GND   Black +5 V Ground
4 +5V   Red +5 VDC

Pinouts.ru > Pinouts of power supplyes >  Pinout of Standard PC peripheral power and layout of 4 pin Molex power connector

Source(s): Hardware Book, Eric Sprigg, Sven Gunnar Bilen, Scott Lind
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