VirtualBox will likely not support it for a very long time (assuming they will ever do it), as VGA passthrough has some host requirements (configuration-wise),

VirtualBox will likely not support it for a very long time (assuming they will ever do it), as VGA passthrough has some host requirements (configuration-wise), that I think would be too much to handle for a virtualization product. I use QEMU and it works without any issue; to be specific, in hundreds of boots, it hung only a couple of times, which is very well within issues with windows itself rather than the platform. Also, it typically runs via a single script. The crux is to have the correct hardware (some hardware just doesn't work well), and to use a correct software setup (most important thing: if you use a GPU for passthrough, forget about using it on the host at all). The information around is unfortunately very scattered and often outdated. I suggest to use those two sources: - https://github.com/saveriomiroddi/vga-passthrough - https://www.reddit.com/r/VFIO