BetaFPV Cetus X Brushless Flight Controller (BF ELRS)BetaFPV Cetus X Brushless Flight Controller The BetaFPV Cetus X Flight Controller is the brain your whoop deserves F4 power, brushless motor support, and more acronyms than Joshua Bardwells inbox. Built for the Cetus X FPV Kit but just as happy in your franken whoop, it gives you smooth, locked in control without weighing you down. Translation: fewer failsafes, more laps around the living room. Why You Want It Because flying with a janky brushed board