Prolific+usb+to+serial+comm+port+version+32+00+download+2021 !!top!! May 2026

The Prolific USB-to-Serial COM Port driver version 3.2.0.0 (released circa 2021) is a legacy driver often used to maintain compatibility with older PL-2303HXA or PL-2303X chipsets on modern operating systems like Windows 10 and 11.

Common Errors with Version 32.00

| Error | Likely Cause | Fix | | :--- | :--- | :--- | | Code 10 (Device cannot start) | Very old PL-2303H (non-X) chip | Uninstall v32.00, use v2.1.0.0 instead | | Code 28 (Drivers not installed) | Windows Defender blocked the install | Temporarily disable Core Isolation / Memory Integrity | | Code 31 (Device not working) | Conflict with another serial driver | Uninstall all other USB-serial drivers (FTDI, CH340) | | COM port disappears after sleep | Power management issue | In Device Manager > Properties > Power Management > Uncheck "Allow the computer to turn off this device" | prolific+usb+to+serial+comm+port+version+32+00+download+2021

Note: As of 2025, Prolific has moved to newer driver versions (v5.x and beyond). The 2021 v32.00 release is now archived for legacy system support. The Prolific USB-to-Serial COM Port driver version 3

The Legacy Link: Navigating the Prolific USB-to-Serial Driver (Version 3.2.0.0) in 2021 Go to the Prolific Technology Inc

The yellow exclamation mark in Device Manager should disappear. The status should read: "This device is working properly."

Features and Benefits

  1. Go to the Prolific Technology Inc. website or a reputable source and search for the driver.
  2. Click on the download link to download the driver.
  3. Run the installation file and follow the prompts to install the driver.
  4. Connect the USB-to-serial converter to the computer's USB port.
  5. The driver should automatically detect the device and install the necessary drivers.
  • After installation, you can verify that the driver is correctly installed by checking the Device Manager (for Windows) or using a command-line tool like lsusb and dmesg (for Linux).
  • Assign a COM port to your adapter if necessary and test it with a serial terminal program like HyperTerminal, PuTTY, or screen.

Troubleshooting checklist