Tag Archives: pl2303-db9

Installing the Plugable USB to RS-232 DB9 Serial Adapter on Windows 7

Windows 7 will detect and pop up a wizard to install drivers when our Plugable USB to Serial adapter is plugged in, but it’s also easy (as essential on other operating systems) to install the driver software first. Here’s how. Get the driver from: https://plugable.com/drivers/prolific/ You’ll want to download the driver and unzip it anywhere […]

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How to change the COM port for a USB Serial adapter on Windows 7, 8, 8.1, and 10

Start by going to the Device Manager. Once there do the following: Expand the Ports ‘(COM& LPT)’ You should be looking at something like this: As you can see Windows has set the port to COM10. However many legacy applications expect the port to be between 1-4. Let’s change that: Right click on the device […]

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