Hi Folks I'm using Apple MacBook Air M1 (MacOS Big Sur 11.5.2) Parallels 17 (Mac) Standard Edition, 17.0.0 (51461) Windows 10 Pro 64 Bit System ARM based Prozessor Prolific USB - Seriell Adapter: Hardware ID: USB VID 067B&PID 2303&REV_0400 And my Prolific USB - Seriell Adapter is not recognizes by Windows anymore. With the Intel Based MacBook Pro (Mid 2015) no Problem at all. Any Ideas, any solutions? Dan