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The M3503 is used to stow the drone securely when it is not in use. It provides physical security, and data and power ports that the drone can access. The docking station consists of the wall unit and two movable armatures. When the drone is not in it, they swing up against the wall. When the drone enters the dock they swing down, and then close in on the drone to secure it. The power connector can be seen on the rear.