VGA cable has a pin missing is a common issue, the VGA cable pinout lists pin 9 as being a ‘key pin’ that has no function so many manufacturers leave the pin out of the connector, this causes some confusion but for most applications the pin is not necessary. There are however 3 other variants of pinout for the VGA connector, DDC1, DDC2B and DDC2AB. In a VGA DDC Cable pin 9 is used to carry +5 volts, if you are not using DDC a 14 pin cable is fine.

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