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Driver Setup

1) The drivers can be downloaded from the order confirmation page, or from here: //prolificusa.com/pl-2303hx-drivers/



After downloading it, simply run the "PL2303_Prolific_DriverInstaller_v*" file to install the driver. We recommend doing the driver installation BEFORE plugging the adapter into the USB port.



2) Plug the adapter into the USB port, Windows will now load the pre-installed drivers automatically. When it is ready, Windows will show a prompt like this:

Device Ready

Remember the port number. In this case it is COM4. Disconnect the adapter from the computer, but remember which USB port you used.

If you did not see the prompt, or close it too early, then you can either simply plug the device into another USB port and wait for the prompt again, or go to Control Panel -> Hardware and Sound -> Device Manager. The adapter is listed under "Ports (COM & LPT)", write down the port number for the Prolific port.