Running your Starlink cable in through a window seal or a door gap works until it rains. This outlet gives the cable its own proper entry point: a genuine Clipsal IP34 weatherproof outlet fitted with a VANKOR insert made for Starlink.
Outside, the dish cable plugs straight into the outlet and the hinged cover closes over it. Inside, your router connects on the other side. When you pack up, unplug and flip the cover shut. There's no cable left hanging out of the van and no hole left open.