I hypothesize that the car cigarette lighter port is the only truly standard, wi...

		alanbernstein 7 days ago \| parent \| context \| favorite \| on: It's a DE9, not a DB9 (but we know what you mean) I hypothesize that the car cigarette lighter port is the only truly standard, widely-used connector remaining. Wall outlets, just for 120V in the US, have at least three variants. 3.5mm audio plugs have at least four variants.