I'm a new user to Arduino, and would like to get a CDC class shield, with prototyping area, and UART to COM port interface (CDC) on the PC.
Does anybody know of such a shield? I'm using the Uno WiFi
Kolynskij
If you want the Arduino to emulate a USB keyboard or mouse, use a Leonardo or an Arduino with an ARM CPU with native USB port (Due, Zero, etc.)
If you want to plug a USB device (for example, a USB joystick) into the Arduino, you need a USB host shield. The Arduino store sells such a shield and there are many clones.
If none of the above, describe what you want to hookup. Links to datasheets are very helpful.