The Riot 250R Sport F4 Flight Control Board (FC) features the STM32F405 processor and the MPU-6000 which gives this FC incredible precision and control. Thrust-UAV optimized the Riot 250R Sport FC to be hard mounted to the Power Distribution Board (PDB) and connects directly through a light 2 inch silicon ribbon cable. This allows for an easy and clean build without the typical tangle of wires you typically get with FC boards. The Riot 250R Sport F4 FC comes with SBUS, PPM, and serial RX connections along with a 3.3V output for Spektrum radio and a low-profile hardware boot button. This flight control board has been designed from the ground up and optimized for BetaFlight firmware.