Drone Ports can be assigned one other Port as their transport destination. Each Drone Port can contain a single Drone, which transports available input back and forth between its home and destination Port. The Drone Port interface provides delivery details and allows management of Port connections.
The Drone Port is a late-game building used for long range, low-throughput item transportation. A Drone can be built on it. Deleting the Drone Port also removes its nested Drone.
The Drone Port is used for Drones to dock to drop-off or pick-up resources. The drone only takes batteries as fuel. The batteries only need to be supplied to one side (origin or destination) of the route. If batteries are not being supplied to the location the drone starts at the dock must be "seeded" with batteries to get the drone started. Drones are really good at long range, low throughput transportation. Drones can ONLY move between 2 ports back and forth, however, a single port can receive multiple drones.
(So, if you want to supply, lets say batteries to multiple outposts, you can put up ports there, and send them to a central battery production port to fetch the goods)
If there is a drone on the port, when an other one comes in, the second one circles above until the first has departed. Please note, that the majority of the round trip is taken up by coming in for a landing, loading and charging up. Also important to note: Drones can carry items in both directions, so they can take something, then bring another item back! Ports have an "outgoing" and "incoming" storage, both 18 slots in size, and when a drone comes in, it drops its package to the incoming store and takes 9 stacks maximum from the outgoing.
As the platform height of the Drone Port is about 4 meters, foundations elevated 4 meters from the base will be able to flush with the platform level, as well as concealing the belts below them.