Phantom 4 3-1 Board (Second hand)

The Phantom 4 3-1 Board, when purchased second-hand, typically refers to the central electronic component found in DJI Phantom 4 drones. This board integrates the flight controller, electronic speed controllers (ESCs), and the radio receiver into a single unit. It’s crucial for the drone’s stability, flight control, and communication with the remote controller. When buying second-hand, ensure it’s in good condition with all functionalities intact, as any issues with this board can affect the drone’s performance and flight safety.