The DarwinFPV F411 15A AIO is a flight controller with ESCs and ELRS receiver in one. The board is especially suitable for smaller 2-3" drones powered by 1-3S Lipo battery. The flight controller is based on the F411 processor combined with the MPU6500 gyro. The ESCs support current up to 15A and use the BlHeli_S firmware. The board also includes a 5V/2.5A BEC and an integrated SPI ELRS 2.4GHz receiver. The board has a 25,5x25,5mm M2 holes.