Pad Layout & Easy Maintenance: Redesigned with larger, pad for reliabled soldering and a rear positioned USB port for computer debugging Integrated ELRS 2.4G Receiver & Extended Connection: Includes a built in ELRS 2.4G receiver for interferences proof control and additional UART ports for positioning and external devices Advanced Design with Multiple Features: Equipped with 16M, current sensoring, and 3 full ports for versatile connectivity and data logging 2 3S Power Ranges & Enhanced Control: The F4 flight controller features a 20A ESC supporting 2 3S power ranges, thrust and control for double Solution & for wide Compatibility: Features double 9V @ 2A and 5V @ 3A outputs to voltages drops, ensuring stable power for peripherals