Overviews: UVC is a pretty nice technology in live broadcast, which means you do not need a video capture card to pull stream.

UVC: USB Video Class

Note:

•      UVC only support 1080P video output now
•      Please set the video format to 1080P on OBS when you add the video capture device.

Please check the picture below to get how to use the UVC function.

Then you can enter the OBS to get a video stream.