Description The Matrix 1S Brushless Flight Controller redefines 1S whoop performance with two purpose driven architectures the 3IN1 for DJI O4 digital dominance integrating FC ESC and ELRS 2 4G RX while omitting analog OSD and the 4IN1 for analog mastery adding built in OSD solder pads for external receivers Both feature the iconic cross design architecture newly developed BEC 18A peak ESCs and the STM32G473 MCU for 55 faster processing delivering effortless setup pro tier control and uncompromised flight dynamics that rewrite 1S standards Feature Dual DNA 3IN1 FC ESC and ELRS 2 4G RX for DJI O4 digital dominance omits analog OSD 4IN1 for analog mastery with OSD STM32G473 MCU 55 faster processing than F411 for responsive tuning Stable Video Transmission Features a newly developed BEC to ensure consistent power delivery for seamless HD performance Enhanced Overcurrent Capacity Supports 12A continuous current and 18A peak ESC providing robust performance for demanding flights Reliable Precision Includes an independent 3 3V LDO design to deliver stable interference free power directly to the IMU for accurate control Whoop ready Installation The 3IN1 is equipped with motor plugs and a SH1 0 6Pin HD digital port for a hassle free installation and maintenance experience while the 4IN1 has external RX soldering pads for protocol flexibility Specification Brand BETAFPVModel MatrixItem Name 1S 12A 3IN1 4IN1 AIO Brushless FCModelSpec