Good keyboard. Convenient typing and silent operation. Note however that the right Windows key (between Alt Gr and contextual menu) which was replaced by a Fn key (giving access to special functions in combination with the Windows multimedia keys above the keyboard). This is very annoying if you are used to use Win-L to lock the session or Win-M to minimize all windows. Moreover, even with the Microsoft driver installation, it is not possible to reprogram the button "hardware".