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How to Download and Install Prolific USB to Serial Controller Driver

How to Download and Install Prolific USB to Serial Controller Driver


How to Download and Install Prolific USB to Serial Controller Driver

If you have a device that connects to your computer via a USB to serial port adapter, you may need to install the Prolific USB to Serial Controller driver to make it work properly. This driver is the software that helps your operating system to communicate with USB Serial Port devices.

In this article, we will show you how to download and install the Prolific USB to Serial Controller driver version 3.3.3.114, which is compatible with Windows 7, 8.1, 10 and 11 (64-bit). This driver supports the following Prolific chip versions: PL2303 HXD, SA, RA GC, GS, GT, GL, GE , GD, GR.

Step 1: Download the driver installer file

The first step is to download the driver installer file from the official website of Prolific Technology Inc., the manufacturer of the USB to Serial Controller ICs. You can use the following link to access the download page:

https://www.prolific.com.tw/US/ShowProduct.aspx?p_id=225&pcid=41

On the download page, scroll down to the section “PL2303 Windows Driver Download” and click on the file name “PL23XX_Prolific_DriverInstaller_v408.zip”. This will start the download process. Save the file to a location where you can easily find it later.

Step 2: Extract and run the driver installer file


Step 1: Download the driver installer file

The next step is to extract and run the driver installer file that you downloaded in the previous step. To do this, follow these steps:

  • Locate the file “PL23XX_Prolific_DriverInstaller_v408.zip” on your computer and right-click on it.
  • Select “Extract All” from the context menu and choose a destination folder where you want to extract the files.
  • Open the destination folder and double-click on the file “PL2303_Prolific_DriverInstaller_v4.0.8.exe”. This will launch the driver installer program.
  • Follow the on-screen instructions to complete the installation process. You may need to accept the license agreement and allow some changes on your computer.
  • When the installation is finished, you may need to restart your computer for the changes to take effect.

Step 3: Connect your device and check if it works


Step 2: Extract and run the driver installer file

The final step is to connect your device that uses a USB to serial port adapter to your computer and check if it works properly. To do this, follow these steps:

  • Plug in your device to a USB port on your computer using a USB to serial port adapter.
  • Open Device Manager on your computer by pressing Windows + X keys and selecting Device Manager from the menu.
  • Expand the category “Ports (COM & LPT)” and look for a device named “Prolific USB-to-Serial Comm Port (COMx)”, where x is a number assigned by your computer.
  • If you see this device with a yellow exclamation mark or a red cross over it, it means there is a problem with the driver or the device. You may need to update or reinstall the driver or troubleshoot the device.
  • If you see this device without any error symbols, it means the driver is installed correctly and the device is working properly. You can now use your device as intended.

Conclusion


Step 3: Connect your device and check if it works

In this article, we showed you how to download and install Prolific USB to Serial Controller driver version 3.3.3.114 for Windows 7, 8.1, 10 and 11 (64-bit). This driver supports various Prolific chip versions and enables your computer to communicate with USB Serial Port devices. We hope this article was helpful and informative for you.

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