Please refer to the Buzz owner manual for additional information.
EMAX F4 Magnum II Flight Controller — OmnibusF4 / Buzz Replacement FC
The EMAX F4 Magnum II Flight Controller is the factory FC for the EMAX BUZZ freestyle quadcopter — a direct OEM replacement when your FC takes damage from a crash or electrical fault. Running on the OmnibusF4 target with an STM32F405 MCU and MPU6000 gyro via SPI, it delivers reliable, low-latency flight control with onboard OSD, onboard buzzer, and an integrated 5V/3A BEC. Dedicated PPM/SBus input for clean receiver wiring.
STM32F405 MCU — capable F4 processor for fast loop times and Betaflight compatibility
MPU6000 gyro via SPI — low-noise, high-speed gyro connection for clean flight performance
OmnibusF4 target — broad Betaflight support with active community
On-board OSD — in-flight telemetry and tuning via FPV goggles
On-board buzzer — lost model alert built in
Integrated 5V/3A BEC — powers peripherals without an external BEC
Dedicated PPM/SBus input — clean receiver wiring for most common receiver protocols
The direct OEM FC replacement for the EMAX BUZZ. Keep one on the shelf and an FC failure becomes a quick swap, not a grounded quad.
