I Just bought this adapter to find there is no driver for MAcOs Big Sur 11 and it seems no plan to get one out any time soon.  The most recent driver for this adapter is a Beta from 2019!! I was told maybe the engineers would decide to create a new driver and to keep looking on the official website just in case. Obviously, the customer does not come first at TP Link!!  There is not even a facility to register your product so you can receive updates!!