PC Power Supply Voltage Data and Connector Types

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Power for Internal Peripheral Devices

Four Pin Molex Power Connector

Molex Drive Connector
Typically used for 5¼ drives such as CD Rom and DVD Drives. Used for legacy IDE, EIDE, and ATA Hard Drives.

Pin Wire Color Signal
1 Yellow +12v
2 Black Ground
3 Black Ground
4 Red +5v

Four Pin Molex Connector01.png

 

Serial ATA Power Connector

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Berg Floppy Power Connector

AMP 171822-4
Typically used for 3½ floppy disk drives.

BergFloppyPowerConnector.png

 

Six Pin PCI Express Power Connector

PCI Express GFX Connector
MOLEX 39-01-2060

PowerSupplyVoltageDataforPersonalComputers04.png

 

Three Pin Molex KK Type Connector

 

Power for the Motherboard and CPU

20+4 ATX Power to Motherboard Connector

MOLEX 39-01-2240

204ATXPowertoMotherboardConnector.png

 

Eight Pin CPU Power Connector

MOLEX 39-01-2080

PowerSupplyVoltageDataforPersonalComputers01.png

 

AMP ATX 12v Power Connector

AMP 1-480424-0

PowerSupplyVoltageDataforPersonalComputers02.png