Driver for PL2303 USB / TTL Converter for Windows XP, Vista, 7, 8, 9, 10

Please refer to section based on your Windows OS for Driver Download also Instructions.

PL2303 Driver for Windows 64-bit

All Windows 64-bit operating systems including Windows 10
Prolific USB to Serial Adapter OR other device.
Device using PL-2303 H, HX, HXA, HXD, X, XA, EA, RA, SA, TA, TD version chips
Driver Version: 3.3.2.102
Driver Date: 09/29/08
Supported device ID and product strings: . VID_067B&PID_2303 for “Prolific USB-to-Serial Comm Port”

  1. PL2303 Treiber for Windows 64-bit (157 downloads)
  2. unzip download
  3. Unplug all USB-To-Serial adapters and Double click on the installer “PL2303_64bit_Installer.exe”
  4. When it prompts you, plug in one (1) of your USB-To-Serial adapters and click “Continue”.
  5. Reboot your computer.
  6. Unplug the adapter and plug back in again. That’s it!

Trouble Shooting: You must follow ever step in the process precisely. If you still receive an error after running the PL-2303_64bit_Installer.exe and your device is plugged in, go to the Windows Device Manager. Scroll down to Ports (Com & LPT) and Double-Click on “Prolific USB-to-Serial Comm Port (COM#)”. In the Properties Window, Click on “Driver”. The “Driver Version” must say “3.3.2.102” dated 09/24/08. If not, then the correct driver is not installed. Unplug the USB-To-Serial adapter and run the “PL2303_64bit_Installer.exe” again, following the directions precisely until you get it right.

Removal: There is no “Uninstaller” for this file. The installer itself is just an executable “.EXE” file that can be deleted when you are done. Any additional files that it uses are temporary only and are stored in the “C:\Windows\Temp” folder.

PL2303 Driver for Windows 32-bit

All Windows 32-bit operating systems from XP up
Prolific USB to Serial Adapter .
Device using PL-2303 H/HXA/HX/X version chips
Driver Version: 2.0.2.8
Driver Date: 11/20/07
Supported device ID and product strings: . VID_067B&PID_2303 for “Prolific USB-to-Serial Comm Port”

  1. PL2303 Treiber Windows 32-bit (154 downloads)
  2. unzip download
  3. Unplug all USB-To-Serial adapters and Double click on the installer “PL2303_32bit_Installer.exe”
  4. Run the installer program. If it offers a choice to remove old driver, then select to remove the current “bad” driver. Then run the installer again to install the correct driver.
  5. When it prompts you, plug in one (1) of your USB-To-Serial adapters and click “Continue”.
  6. Reboot your computer.
  7. Unplug the adapter and plug back in again. That’s it!

Trouble Shooting: If you still receive an error after running the PL-2303_Driver_Installer.exe and your device is plugged in, go to the Windows Device Manager. Scroll down to Ports (Com & LPT) and Double-Click on “Prolific USB-to-Serial Comm Port (COM#)”. In the Properties Window, Click on “Driver”. The “Driver Version” must say “2.0.2.8” dated 11/20/07. If not, then the correct driver is not installed. Unplug the USB-To-Serial adapter and run the “PL2303_Driver_Installer.exe” again, following the directions precisely until the correct driver appears in the Device Manager. 

Removal: The Prolific 32-bit PL-2303_Driver_Installer is a “Program” file and therefore installed to your computer and must stay. If you want to delete it, use the Windows “Uninstall a Program” or “Add or Remove Program” feature, however this will also uninstall the driver itself.

PL2303 for Windows 32-bit XP, Vista, Windows 7

For XP, Vista, and Windows 7 users that cannot get the driver files installed using the PL-2303_Driver_Installer, you can also try having Windows install the files directly.

Windows 32-bit operating systems such as Windows XP, Windows Vista, Windows 7

Prolific USB to Serial Adapter OR other device.
Device using PL-2303 H, HX, HXA, HXD, X, XA, EA, RA, SA, TA, TD version chips
Driver Version: 3.3.2.102
Driver Date: 09/29/08
Supported device ID and product strings: . VID_067B&PID_2303 for “Prolific USB-to-Serial Comm Port”

  1. PL2303 Windows 32-bit XP Vista Windows 7 Treiber (102 downloads)
  2. unzip download
  3. Unplug all USB-To-Serial adapters and Double click on the installer “PL2303_Win32.exe”
    This will install the driver files in a directory on your hard drive named, “C:\PL2303Win32”
  4. Plug in your Prolific USB to Serial adapter
  5. Go into Device Manger, and then Scroll down to Ports (Com & LPT) and Double-Click on “Prolific USB-to-Serial Comm Port (COM#)”, or in some cases, “Other Device”
  6. Click on “Update Driver” and then choose to locate the driver on your computer.
  7. Click on “Browse” and direct Windows to the folder “C:\PL2303Win32” where the files are located and click OK (Windows will copy the files directly into the Driver Store for the system to use)
  8. Unplug your Prolific adapter and plug it in again and the driver will be installed from the Driver Store to Windows/System32/Drivers and your device should be working properly

 

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