Many new PCI-Express video cards use this 6 pin connector as additional source of power, because the PCI-E bus is limited to 150W power draw max.
The middle pin in the bottom row is not connected.
Pinout of the PCI-Express Power Connector
On: 06 April 2005
Many new PCI-Express video cards use this 6 pin connector as additional source of power, because the PCI-E bus is limited to 150W power draw max.
The middle pin in the bottom row is not connected.
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