Sub250 Redfox A3 45A BL32

Sub250 Redfox A3 45A is an AIO board that integrates a flight controller and ESCs. The board is suitable for 3–4" freestyle drones, Cinewhoops, or even lightweight 5" drones powered by 2–6S LiPo batteries. The Redfox A3 features an external USB-C connector on a cable, allowing you to place it in an easily accessible location — especially useful in Cinewhoop builds.

The flight controller is built around an F722 processor combined with an ICM42688-P gyro. It also includes an OSD chip for analog video transmission, a barometer for altitude measurement, and a 5V BEC to power peripherals such as an RC receiver or GPS module. The integrated ESCs run BlHeli_32 firmware and support currents up to 45A. The board also includes a current sensor.