*pnp0500 Today

While modern consumer PCs rarely have these ports built into the motherboard anymore, the ID is still frequently seen in the following scenarios:

In the context of Windows Device Manager, this ID is used by the operating system to identify a serial communication controller that adheres to industry-standard architecture, typically requiring the standard built-in Windows driver to function.

The hardware identifier *pnp0500 corresponds to a (also known as a legacy COM port or RS-232 port).