I have a Mac with Catalina 10.15.4 and a Windows 10 computer. Works fine on both computers, but I don't need to look for drivers to make it work on either of them. The adapter was just plug and play. I've used it for cameras connected with S-Video cables, so I didn't have a chance to test the AV input. The device itself works like a webcam. The only downside I can think of is that when I use Quicktime to record and select this device as the video input, the video sizes aren't incredibly large. It simply means that the video size is not as big as a webcam, so the quality is more like a Youtube video than an HD movie. Still, I think it's a decent size and I'm happy with it.
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