Hi,
This device is an analogue video converter.
https://www.startech.com/AV/Converters/Video/usb-3-0-video-capture-device-hdmi-dvi-vga~USB3HDCAP
The output should be UVC compliant.
https://en.wikipedia.org/wiki/USB_video_device_class
Yet guvcview reports "no video device found". Any ideas beyond
"file a bug report"?
Thanks, ... Peter E.