IIRC, there are 3 pins that are not connected to anything, which can technically be left off.
Some manufacturers used to even fill them in with plastic in the F connector, so you couldn't plug a 'standard' monitor cable into them... guess it can give them a few extra monitor sales that way, when the generic competition won't fit the socket.
Some manufacturers used to even fill them in with plastic in the F connector, so you couldn't plug a 'standard' monitor cable into them... guess it can give them a few extra monitor sales that way, when the generic competition won't fit the socket.