Hi, I found that devices/programs which needs USB pass-through (passthrough, pass through) doesn't work with Big Sur and Parallels Desktop 16.x anymore. Smart card readers in particular then are useless! I have a smart card reader mIDentity from DATEV. So DATEV is not working in the combination Big Sur/PD 16.x. I don't know if it is a Big Sur issue or PD doesn't support USB Pass-through anymore with Big Sur. Thanks Chris
