F405 65A 30.5MMx30.5MM Flight Controller MCU: STM32F405 IMU(Gyro): ICM42688p (Default) Black box:16M Black Box OSD: BetaFlight OSD (AT7456E chip) USB Port:Type-C for Air Unit connector: YES Power Input: 3S - 6S Lipo BEC Output: 5V output, the total current load is 3A 12V output, the total current load is 2.5A UART: 5 sets UART1 for VTX data setting UART2 for RC link (R21 for SBUS receiver) UART3 Vacancy UART4 for GPS UART5 Dedicated for ESC telemetry ESC Signal: M1 - I2C:YES (SDA & SCL pads can be used for magnetometer) LED Pad: YES (Used for WS2812 LED control) Buzzer Pad: YES BOOT Button: YES Firmware Target Name: STM32F405 Mounting: 30.5 x 30.5mm (4mm hole diameter) (The product appearance and printed words depending on the batch, but this does not affect use) Color: Black Material: PCB Package Contents: 1 x FPV Stack Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.