F4 V3S Plus Flight Controller — 30.5x30.5, 2-6S, 3A BEC

The F4 V3S Plus is a 30.5x30.5 flight controller engineered for 5-inch freestyle and racing quadcopters. Running an STM32 F405 processor and a BMI270 gyro, it provides a stable hardware foundation for Betaflight builds and accepts 2-6S LiPo power directly.

Key features

• Dual high-output BECs (5V/3A and 9V/3A) with onboard video filtering on the 5V line to deliver clean power to FPV cameras and analog VTXs.

• Integrated MicroSD card slot for comprehensive Blackbox flight data logging.

• Built-in BMP280 barometer for accurate altitude tracking and rescue modes.

• Dedicated direct-solder pads for SBUS, PPM, and Spektrum DSMX serial receivers.

Specifications

• Processor: STM32 F405

• Firmware target: Omnibus F4 (Betaflight)

• Gyro: BMI270

• Barometer: BMP280

• Input voltage: 2-6S LiPo

• BEC output: 5V/3A, 9V/3A

• Blackbox: MicroSD card slot

• Supported receivers: SBUS, PPM, DSMX

• Mounting size: 30.5x30.5

• Dimensions: 36 x 36 mm

This board is a cost-effective replacement or upgrade for older standard-stack builds. Ensure your frame accommodates the 36 x 36 mm footprint and 30.5x30.5 mounting pattern. When pairing with digital FPV systems, verify the air unit's power draw does not exceed the 3A limit of the 9V BEC.