*pnp0500

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

The "PNP" prefix stands for Plug and Play , a Microsoft standard for hardware that allows the OS to automatically detect and configure devices.

If you see this device in Device Manager with a yellow exclamation mark (Error), or if you are trying to get it to work on a modern PC, follow these steps: *pnp0500

It represents a "Communications Port," better known as a COM port .

Most modern USB-to-Serial adapters (like those used for Arduino, networking consoles, or old printers) will NOT show up as *pnp0500 . The hardware identifier *pnp0500 corresponds to a (also

Are you trying to related to this ID, or were you just curious about what it represents? Unable to Install Arduino Drivers - IDE 1.x

If you are seeing this code, you are likely looking at the property of a device in your Windows Device Manager or troubleshooting a driver installation issue. Most modern USB-to-Serial adapters (like those used for

If the device is not working: