1. for fixed-wing flight control F405WING, the main control adopts F405 chip, 1MB FLASH, rich interfaces and complete functions. Built-in TF card holder, barometer, gyroscope, OSD, reserved interface socket, which can be plugged in or soldered. 2. PDB board with large current, built-in galvanometer detection. The default 5V BEC servo output is 8A. It can also be set to 6V/6.5A and 7.4V/6A through the PDB jumper pad to power the servo. The PDB is also integrated with a 5V BEC to power the flight control and a 9V BEC to power the image transmission (can be switched to 12V). There is also an additional 3.3V LDO reserved. 3. There is an 5V BEC on the LED board that can be connected to four WS2812 light strips. The control signal is provided by the LED Strip of F405. The extended USB interface board has a BOOT button and a 110 dBm buzzer with a switch that can turn it off. 4. Note: Since the 6P plug cable of the USB interface board and the O3 air end cable are both 6P, be sure to check the cable type clearly when connecting, and do not plug it in wrongly to avoid burning the flight control or O3. The 6P cable on the USB board is the green one. 5. Supports WS2812 programmable LED; supports buzzer; built-in voltage and current sensors CPU:STM32F405RG Sensor:-42688-P Firmware version:INAV JHEMCUF405WING. HEX Black box:Bring your own TF card Barometer:Supported OSD:support IIC:Support UART:6 Image transmission:supports analog image transmission, supports O3 and other high-definition air terminals Receiver:SBUS, IBUS, DSM2, DSMX, , ELRS CRSF, etc. BEC: 5V/8A for steering gear (switchable to 6V/6.5A, 7.4V/6A) 5V/2.5A for flight control, 9V/2A for image transmission (12V/1.8A switchable) 3.3V LDO 450MA Note:Different Batches May Have Differences In ProductAppearance, Color, And Printed Characters, Which Will Not Affect The Use. Color:As Shown Material:PCB Size:54x36x16MM Package Contents: 1Set * Model Aircraft Drone Flight Control 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.