This product I received is not working. It was a kit and VTX cannot connect to FC. FC and ESC should be connected together, but the orientation is wrong, making the USB port behind the quad camera. The FC only has 2 UARTs and the video board has 1 IN but no output board and has to use the camera connector, making it difficult to set up with the details provided by the owner. Soldering irons on ESC and FC are tiny. Maunal is so small and blurry. Don't waste money.