CC3D is one of the all time classics of flight controllers and that's why we have to offer it here. The STM32F1 CPU is still up to the task and more than enough for typical FPV flying.
Key Features
Dimensions: 36 x 36 mm
Mounting holes distance: 30,5 mm
Weight: 5,6 g
Power supply: max 15 V
Processor STM32F1, 72 MHz
Akcelerometer/gyroscope: MPU6000
Firmware: OpenPilot, CleanFlight, BetaFlight
PC connection: MiniUSB
Supports PWM, PPM and Sbus
Supports telemetry and battery voltage measurement