Recently, there was a big problem where the USB UVC device in the Android OS 10 smartphones was blocked. If you have a professional broadcasting camera, it is also possible with SDI to UVC capture card. Also, your DSLR cameras, camcorders, and drones can be used as a video source in your live-streaming with an HDMI-UVC capture card.
You can connect wired cameras such as wearable cameras, webcams, microscopes, and endoscopes directly. CameraFi Live allows you to broadcast with an external camera that supports USB UVC(USB Video Class).