InvenSense third generation IMU ICM42688-P 9-60V (3~12S LiPo) wide input voltage and voltage sensing. And 9~16V BEC for DJI OSD or analog VTX. 8 motors + 3 servo motors in the INAV/BF multi-motor mixer. 2 x SH1.0_8-pin connectors for PnP with 2 x 4in1 ESC 1x SH1.0_6pin connector for PnP with HD system (Caddx Vista and air unit) STM32F405 has 1MB flash and can run ArduPilot/INAV/BetaFlight USB pinout for connection to an external USB adapter. Microcontroller: STM32F405RGT6 IMU: ICM42688-P OSD: AT7456E, DJI OSD Air pressure: SPL06-001 (I2C) Black box: 16 million bytes of flash memory 6 UART, 1 Softserial_Tx option 12 PWM outputs (8 Dshots) 1 I2C 4 ADCs (VBAT, current, RSSI, airspeed) 2 PINIO 2 SH1.0_8-pin connectors for 4in1 ESC 1x SH1.0_6pin connector for HD systems (Caddx Vista and air units) 3 LEDs for FC STATUS (blue, green) and 3.3V indicator (red) 9~16V (Vxs) output switchable on/off Dual analog camera signals can be switched that power Input: 9~60V (3~12S LiPo) BEC: 5V 1.5A BEC: Vx, 9~16V/1~2A (3S input/9V 2A, 4S input Due to different batches, the appearance, color and printed words of the product may vary, which will not affect the use. Colour:Blue Material:PCB Package Contents: 4 x Controller