Thank you for this link and sorry for double post. I searched for CH340G before posting and found nothing :(
Anyway, I am not sure if the problem is USB 3.0 or some specific USB controllers (and have no intention to make some further experiments here). Simple, this chip doesn't work "out of box" like Mega16AU or FTDI.
Anyway, I am not sure if the problem is USB 3.0 or some specific USB controllers (and have no intention to make some further experiments here). Simple, this chip doesn't work "out of box" like Mega16AU or FTDI.