SpeedyBee SB-F4V3 50A Stack F4 Flight Controller and BLHeli_S 4-in-1 ESC for FPV Racing Drones

The SpeedyBee SB-F4V3 50A Stack is a powerful, high-performance flight control system designed for FPV racing drones and freestyle builds. Combining an F4 flight controller with a 50A BLHeli_S 4-in-1 ESC, it offers smooth, efficient power delivery and precise flight control in one compact stack. The F4 controller supports Betaflight firmware and offers comprehensive connectivity options, including USB Type-C configuration, onboard barometer, OSD, and Bluetooth for convenient mobile tuning through the SpeedyBee App. The 50A ESC delivers stable current performance with DShot600 protocol support and reliable MOSFET components for high-speed throttle response. Engineered for both beginners and professionals, the SB-F4V3 stack ensures low noise, high stability, and excellent durability under demanding FPV conditions. With its plug-and-play wiring design and integrated features, it’s the perfect choice for pilots seeking both simplicity and top-tier flight performance.

Key Features:

• Integrated F4 flight controller and 50A 4-in-1 BLHeli_S ESC stack for powerful performance.
• Supports DShot600, Oneshot, and Multishot ESC protocols for fast response.
• Bluetooth connectivity for wireless tuning via SpeedyBee App.
• Betaflight support with onboard OSD, barometer, and blackbox logging.
• USB Type-C port for easy PC configuration and firmware updates.
• Compact, plug-and-play design ideal for 20×20mm or 30.5×30.5mm drone frames.

Additional Specification:

• Flight Controller MCU - STM32F405
• ESC Current Rating - 50A Continuous / 55A Burst
• ESC Firmware - BLHeli_S
• Input Voltage - 3–6S LiPo (11.1V–22.2V)
• Firmware Support - Betaflight / SpeedyBee App