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Prolific Usb To Serial Comm Port Version 32 00 Download 2021 [updated] May 2026

Prolific USB-to-Serial Comm Port Driver version 3.2.0.0 is widely recognized as the most stable "legacy" driver for resolving compatibility issues with older PL2303 chipsets (such as PL-2303HXA and PL-2303X). These chips were phased out in 2012 and often fail to work with modern Windows updates, frequently resulting in a "Code 10" error or a "Phased Out" warning. Download and Compatibility

Version 3.2.0.0 is particularly useful for users on Windows 7, 8, 10, and 11 who are using older programming cables or serial-to-USB adapters that utilize legacy Prolific hardware. Release Date of Version 3.2.0.0: July 31, 2007.

Recommended backdating to this version to bypass restrictions in newer Prolific drivers that intentionally block older or non-genuine chips. Operating Systems: Supports both 32-bit and 64-bit architectures. Installation Guide for 2021 and Newer Systems

To ensure this specific driver version works, you must manually prevent Windows from automatically updating to a non-functional newer version. Download the Driver:

Save the v3.2.0.0 installer (often available from specialty hardware sites like ) to a new folder. Disconnect the Device: prolific usb to serial comm port version 32 00 download 2021

Unplug your USB-to-Serial cable before starting the installation. Run the Installer: Double-click the

file and follow the prompts. Once finished, plug your device back in. Manual Update in Device Manager: Device Manager and find the device under Ports (COM & LPT) Right-click and select Update driver Browse my computer for drivers Let me pick from a list of available drivers on my computer Select the version labeled 3.2.0.0 [7/31/2007] and click Next. Disable Auto-Updates:

Since Windows may try to "fix" this by updating to a newer, incompatible version, it is recommended to turn off automatic driver updates for this specific device. Why Use Version 3.2.0.0? PL2303GC USB to Full UART Bridge Controller with GPIO

Pre-Installation Steps

  1. Identify your PL-2303 chip revision:

    • Plug in the USB-to-Serial adapter.
    • Open Device Manager → Ports (COM & LPT).
    • Right-click the Prolific device → Properties → Details → Hardware Ids.
    • If you see USB\VID_067B&PID_2303&REV_0300, you have an older chip that needs version 32.00.

  2. Disable automatic driver updates (temporarily):

    • Go to Control Panel → System → Advanced System Settings → Hardware → Device Installation Settings → Choose No.

If you get “Code 10” (Error 43)

  • Do not attempt to force-install v3.2.0.0. Your chip is unsupported.
  • Alternative: Uninstall v3.2.0.0 and roll back to v3.3.2.102 (2012) or v3.4.8.0 (2016) for older chips – but note that Windows 10/11 may reject these without test mode enabled.

Scenario A: You have a GENUINE Prolific Chip (Rare)

If you have a high-end, branded industrial adapter, you can use the official driver.

  • Official Source: Go to the Prolific Official Website.
  • Look for the PL2303HXA or PL2303TA drivers.
  • "Version 3.2.0.0" usually refers to the setup file version. The actual driver file version may differ slightly.

Prolific USB to Serial Comm Port Version 32.00 Download 2021: The Complete Guide to Legacy Drivers and Modern Compatibility

Published: 2021 (Archival Review)

For decades, the Prolific PL-2303 series chipset has been the industry standard for connecting legacy serial devices—such as routers, GPS receivers, industrial machinery, and POS systems—to modern computers via USB. However, users searching for "Prolific USB to Serial Comm Port version 32.00 download 2021" are often caught in a frustrating loop: driver errors, Code 10 errors, or the infamous "device cannot start" warning. Prolific USB-to-Serial Comm Port Driver version 3

This article explains exactly what Version 32.00 is, why 2021 was a pivotal year for Prolific drivers, how to download the correct version, and how to safely install it on Windows 10 and 11.

Technical Write-Up: Prolific USB-to-Serial Driver v3.2.0.0 (2021)

2. Key Changes in Version 3.2.0.0 (2021)

Unlike older drivers (v3.3.x, v3.4.x, v3.5.x), version 32.00 introduced strict hardware revision checking:

| Chip Revision | Supported by v3.2.0.0? | Common Devices | |---------------|------------------------|----------------| | PL2303 HXD (Rev D) | ✅ Yes | High-quality adapters | | PL2303 HXA (Rev A) | ❌ No (Code 10 / Error 43) | Older cables (pre-2012) | | PL2303 TA (Rev E) | ❌ No | Many generic adapters | | Counterfeit chips | ❌ No | Cheap eBay/Amazon cables |

Critical Note: If your adapter worked with Windows 7 but fails after installing v3.2.0.0 (showing Code 10 or This device cannot start), it almost certainly contains an unsupported older or counterfeit PL2303 chip. Pre-Installation Steps