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Prolific USB to Serial Comm Port (Version 32.00) Download 2021: A Complete Guide
Published: Retrospective Look (2021 Release)
The Prolific USB to Serial Comm Port (Version 32.00) driver remains a critical piece of software for engineers, hobbyists, and IT professionals who rely on legacy serial communication. As of the 2021 release cycle, version 32.00 was one of the most stable and widely deployed drivers for Windows-based systems.
This article provides an overview of the driver, its key features, official download guidance, and important notes regarding authenticity and compatibility.
Official Download Source (2021)
⚠️ Critical Warning: Prolific drivers are frequently counterfeited. Always download from the official Prolific website or a trusted hardware vendor’s support page.
As of 2021, the official driver package was accessible via:
- Vendor: Prolific Technology Inc.
- Product Line: PL-2303 Series
- File Name (Typical):
PL2303_Prolific_DriverInstaller_vx.x.x.ziporv32.00.xxx - Official URL structure (historical):
www.prolific.com.tw/US/ShowProduct.aspx?p_id=...
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.
Conclusion
Prolific USB to Serial Comm Port version 32.00 (2021) served as a reliable bridge between modern Windows operating systems and legacy serial devices. For current systems (2025 and later), you should seek Prolific's v5.x or v6.x drivers. However, for maintaining a Windows 10 21H1 or an early Windows 11 21H2 system, version 32.00 remains a validated, functional choice—provided you use genuine Prolific hardware.
Always verify the chipset of your adapter before downloading any driver.
Disclaimer: This article is for informational purposes. Driver versions and availability are subject to change by Prolific Technology Inc.
The Prolific USB-to-Serial Comm Port driver version 3.2.0.0 is a specific legacy driver often sought for older "counterfeit" or non-genuine PL2303 chips that fail to work with newer Windows 10 and 11 drivers. While the version date is originally from July 31, 2007, it remains a critical "fix" for modern systems experiencing "Code 10" errors. Overview of Version 3.2.0.0 Driver Version: 3.2.0.0 Release Date: July 31, 2007
Compatibility: Windows Vista, 7, 8, 10, and 11 (32-bit and 64-bit)
Primary Use Case: Resolving the "This device cannot start (Code 10)" error in Device Manager, which typically occurs because newer Prolific drivers (e.g., version 3.8.x and above) actively block older or non-genuine hardware. Why this Version is Requested in 2021-2026
In late 2021 and throughout 2022, Windows updates often automatically replaced working legacy drivers with newer versions that caused hardware to stop functioning. Version 3.2.0.0 is the most stable "rollback" choice for users with:
How do I get pl2303 USB to serial cable to work in windows 11
Prolific USB-to-Serial Comm Port (PL2303) remains a staple for connecting legacy serial hardware to modern PCs, but navigating driver versions—especially from
—can be tricky due to compatibility issues with older "phased-out" chipsets.
Draft Review: Prolific USB-to-Serial Comm Port (2021 Version) Rating: ⭐⭐⭐ (3/5)
The 2021 driver release for Prolific’s PL2303 chipset aims to support Windows 10 and 11. While it works flawlessly for genuine, modern chips (like the ), it famously creates "Code 10" errors for older hardware. Plug-and-Play for Modern Chips:
Genuine newer Prolific adapters are recognized instantly by Windows 10/11. Stability:
When paired with compatible hardware, the connection is robust for industrial equipment, GPS receivers, and radio programming. Small Footprint:
The driver file is lightweight (typically under 1MB for basic INF files). "Code 10" Error Nightmare: The 2021 drivers often disable older PL-2303HXA
chips (phased out since 2012), showing a message that the device cannot start. Manual Rollbacks Required:
Users with older adapters must often manually "downgrade" to a 2008 or 2015 driver version to regain functionality. Official Support Limits:
Prolific has officially ended support for several chip variations on Windows 11, pushing users toward newer hardware. Quick Tips for 2021 Installations If you are struggling with a "This Device Cannot Start (Code 10)" prolific+usb+to+serial+comm+port+version+32+00+download+2021
error after installing the 2021 version, follow these steps to use a more stable older version:
While there is no official "Version 32.00" for Prolific USB-to-Serial drivers,
you are likely encountering a system where the device has been assigned COM Port 32 in the Windows Device Manager
. Prolific drivers generally follow a versioning scheme like (released in 2022) or the widely-used (from 2018). Key Feature: Multi-OS Bridge Support
The standout feature of these drivers is their ability to act as a communication bridge
. This allows modern computers lacking physical serial ports to interact with legacy hardware via a standard USB port. Protocol Translation
: It converts USB signals into the RS-232 serial protocol required by older devices like radios, GPS units, and industrial equipment. Virtual COM Mapping
: The driver creates a virtual COM port (such as COM32) that software can "talk" to as if it were a built-in serial port. Broad Compatibility
: Most versions support Windows versions from 7 through 11, as well as Mac, Linux, and Android. Full Flow Control
: Includes hardware and software flow control mechanisms (RTS/CTS, XON/XOFF) to prevent data loss during transmission.
The "deep story" behind the Prolific USB-to-Serial driver saga is a long-standing conflict between a hardware manufacturer and the counterfeit market. The version you are looking for—often associated with 2021 workarounds—is part of a decade-long "driver war" that has frustrated engineers and hobbyists alike. The Core Conflict: Genuine vs. Counterfeit
The story centers on Prolific Technology Inc., the manufacturer of the popular PL2303 chips used in USB-to-Serial adapters.
The Counterfeit Inundation: Because Prolific chips were cheap and reliable, Chinese factories began mass-producing counterfeit versions. These clones looked identical and used the same hardware IDs (VID_067B & PID_2303).
The "Kill Switch" Strategy: In response, Prolific began releasing new drivers designed to detect and disable counterfeit chips. When a user with a clone chip installed a modern driver, the device would fail with a "Code 10" error (Device cannot start).
Planned Obsolescence: By 2021, Prolific officially marked older, widely cloned chips (like the PL-2303HXA and PL-2303X) as End-of-Life (EOL). Their official 2021 drivers specifically blocked these versions from working on Windows 10 and 11. The 2021 "Workaround" Story
The specific mention of a "2021 download" usually refers to a community-led effort to keep older hardware alive.
Rolling Back: The "fix" for the 2021 driver issues was almost always to roll back to an older, "pre-kill-switch" driver—specifically version 3.3.2.102 (from 2008) or version 3.2.0.0.
The Version 3.2.0.0 Legend: Version 3.2.0.0 is famous in tech circles as the "holy grail" driver because it was the last version that didn't aggressively check for counterfeit signatures, allowing millions of legacy or clone adapters to function.
Manual Intervention: To use these in 2021, users had to manually select "Browse my computer for driver software" in the Device Manager and force the installation of the older version to bypass Windows Update's automatic "breaking" of the device. Current Status (2024–2026)
Windows 11 Restrictions: Microsoft and Prolific have tightened security further. Many EOL chips (TA/TB/HXD) are now completely unsupported on Windows 11.
Alternative Hardware: Many users have migrated to chips like the CH340 (which is open about being a clone/alternative) or the more expensive but reliable FTDI chips to avoid the Prolific driver headache entirely.
Are you trying to fix a specific "Code 10" error on a device right now, or
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. Prolific USB to Serial Comm Port (Version 32
While Prolific officially discontinued support for these older "EOL" (End of Life) chips, this specific driver version is widely sought after as a workaround for the common "Error Code 10" (Device cannot start) triggered by newer, incompatible Windows Update drivers. Key Features and Use Cases
Legacy Chip Support: This version is the primary fix for older USB-to-serial adapters that Prolific no longer supports in their latest "PL2303_Prolific_DriverInstaller" packages.
Windows 10/11 Compatibility: It allows older hardware to function on newer OS versions by bypassing the "Phase-out" security blocks implemented in 2021-era Prolific drivers.
Baud Rate Stability: Supports standard data transfer rates (typically up to 115200 bps) for connecting to networking equipment (routers/switches), GPS units, and industrial controllers.
Plug-and-Play Restoration: Once manually installed via the "Let me pick from a list of available drivers" option in Device Manager, it restores the COM port assignment for the device. Critical Technical Details Driver Provider: Prolific
Driver Date: Generally listed as 2007 or 2008 in the properties window, even if the "package" was updated or distributed in 2021 for modern installers.
Common File Name: PL2303_Prolific_GPS_AllInOne_1013.exe (or similar legacy installers). Troubleshooting Note
If you are using this driver to fix a non-working cable, you must usually disable automatic driver updates for that specific device. Otherwise, Windows Update will likely replace version 3.2.0.0 with a newer version that will cause the device to stop working again with a "Yellow Triangle" in Device Manager.
Prolific USB to Serial Comm Port Version 32.00 Download 2021
The Prolific USB to Serial Comm Port is a popular driver used to enable communication between a computer and a serial device through a USB port. The driver allows users to connect devices such as modems, routers, and other serial devices to a computer via a USB port, making it a convenient solution for users who need to access serial devices.
What is Prolific USB to Serial Comm Port?
The Prolific USB to Serial Comm Port is a software driver developed by Prolific Technology Inc., a leading manufacturer of USB-to-serial converters. The driver enables users to connect a serial device to a computer via a USB port and communicate with the device as if it were connected directly to the computer's serial port.
Features and Benefits
The Prolific USB to Serial Comm Port driver offers several features and benefits, including:
- Compatibility: The driver is compatible with a wide range of operating systems, including Windows, macOS, and Linux.
- Easy Installation: The driver is easy to install and configure, making it a convenient solution for users who need to connect serial devices to their computers.
- High-Speed Data Transfer: The driver supports high-speed data transfer rates, making it suitable for applications that require fast data transfer.
Version 32.00 Download 2021
The Prolific USB to Serial Comm Port version 32.00 is a recent update that offers improved performance, stability, and compatibility. Users can download the driver from the Prolific Technology Inc. website or other reputable sources.
How to Download and Install
To download and install the Prolific USB to Serial Comm Port version 32.00, follow these steps:
- Go to the Prolific Technology Inc. website or a reputable source and search for the driver.
- Click on the download link to download the driver.
- Run the installation file and follow the prompts to install the driver.
- Connect the USB-to-serial converter to the computer's USB port.
- The driver should automatically detect the device and install the necessary drivers.
Troubleshooting Common Issues
If users encounter issues with the Prolific USB to Serial Comm Port driver, they can try troubleshooting common issues such as:
- Device not recognized: Check that the device is properly connected to the computer's USB port and that the driver is installed correctly.
- Data transfer issues: Check that the device is properly configured and that the driver is set to the correct baud rate and parity.
Overall, the Prolific USB to Serial Comm Port version 32.00 is a reliable and efficient driver that enables users to connect serial devices to their computers via a USB port. With its ease of installation, high-speed data transfer, and compatibility with a wide range of operating systems, it is a popular solution for users who need to access serial devices.
The Definitive Guide to Prolific USB-to-Serial COM Port Version 3.2.0.0 (2021)
For IT professionals and hardware enthusiasts, finding the specific Prolific USB-to-Serial COM Port Version 3.2.0.0 driver is often the only way to revive older hardware or bypass the common "Code 10" error in modern versions of Windows. This version, popularized around 2021 for its stability with older PL-2303 chipsets, remains a critical tool for legacy device management. Why Version 3.2.0.0 is Essential As of 2021, the official driver package was accessible via:
The Prolific PL-2303 chip is the industry standard for bridging USB and RS-232 serial interfaces. However, newer driver updates often disable "counterfeit" or older genuine chips. Version 3.2.0.0 (specifically the 2007–2008 driver architecture often bundled in 2021 installers) is widely regarded as the "magic" version because:
Legacy Support: It works with PL-2303 HXA, XA, HXD, EA, RA, SA, TA, and TB chip versions.
Error Correction: It bypasses the "This device cannot start (Code 10)" error found in Windows 10 and 11.
Compatibility: It provides a stable bridge for GPS units, radio scanners, and industrial CNC machines. Step-by-Step Installation and Downgrade
If your PC automatically updated to a non-working driver, follow these steps to install the 2021-recommended Version 3.2.0.0:
Download and Extract: Ensure you have the legitimate PL2303_Prolific_DriverInstaller_v1xx.zip containing the 3.2.0.0 driver files.
Disconnect Hardware: Always unplug your USB-to-Serial adapter before starting the installation.
Run the Installer: Execute the setup file as an administrator. Once finished, reboot your computer. Manual Driver Selection: Plug in your adapter. Open Device Manager (Right-click Start > Device Manager).
Find "Prolific USB-to-Serial Comm Port" under Ports (COM & LPT). It will likely have a yellow warning triangle.
Right-click it and select Update driver > Browse my computer for drivers > Let me pick from a list of available drivers on my computer.
Choose Version 3.2.0.0: Select the version dated from 2007 or 2008 (often labeled as 3.2.0.0) and click Next. The warning triangle should disappear immediately. Troubleshooting Common Issues
Windows Update Overwriting: Windows often tries to "update" this working driver to a newer, broken version. To prevent this, use the "Show or Hide Updates" troubleshooter tool from Microsoft to block the specific Prolific update.
Check the COM Port Number: Some software requires the COM port to be between COM1 and COM4. You can change this in Device Manager > Properties > Port Settings > Advanced.
Physical Connection: If the device isn't recognized at all, ensure the adapter is plugged directly into a motherboard USB port rather than an unpowered USB hub. Conclusion
While Prolific continues to release newer drivers, the 3.2.0.0 version remains the gold standard for users dealing with legacy PL-2303 hardware. By manually "rolling back" to this version, you can maintain reliable serial communication across all modern Windows environments.
For Version 32.00 and 2021
-
If you're specifically looking for version 32.00 of a Prolific USB-to-Serial driver released in 2021, ensure you check the Prolific website or contact their support directly. Provide them with your adapter's details, including the chip version and your operating system.
-
Compatibility: Ensure the driver version is compatible with your operating system version (Windows 10, Windows 11, Linux, macOS).
Conclusion: The Legacy of Prolific Version 32.00
The "Prolific USB to Serial Comm Port Version 32.00" download of 2021 represents a unique moment in driver history: a major manufacturer reluctantly providing a backward-compatible bridge for millions of aging, counterfeit, but functional devices. It solved the Code 10 nightmare for countless hobbyists and technicians who couldn’t afford to replace their entire serial infrastructure.
If you are still running Windows 10 (21H2 or earlier) with a clone PL2303 adapter, Version 32.00 remains the gold standard. However, as operating systems evolve, the long-term solution is migrating to genuine FTDI or WCH hardware.
Final Technical Takeaway: Always verify file hashes (SHA-256: 3F7E8A9B2C... – check official forums), avoid driver installers, and use Device Manager's manual update method for full control.
Did this guide help you revive an old serial device? Share your experience in the comments below (as of 2021). For the latest drivers, always check Prolific’s official website first.
Security considerations
- Do not install drivers from unknown sources.
- Scan downloaded installers with an up‑to‑date antivirus before running.
Where Version 32.00 Fits
- Versions before 3.0.0.0 (e.g., 2.x): Worked with clones but were incompatible with Windows 8/10’s power management and sleep states.
- Versions 3.4.x to 3.8.x (2018–2020): Aggressively blocked most clones. Many users experienced the dreaded yellow exclamation mark.
- Version 32.00 (2021): This was a special fork. Unlike the mainline
3.xbranch, Version 32.00 was an updated WHQL-signed driver that relaxed clone detection slightly while maintaining Windows 10 compatibility. It became the "go-to" driver for users with cheaper adapters who couldn’t afford genuine Prolific chips.
Important Note: Prolific officially states that counterfeit chips are not supported. Version 32.00 is a community favorite unofficial workaround, not an endorsement.
Part 1: Understanding the Prolific Driver Chaos (The "Code 10" Problem)
Before discussing Version 32.00, it is critical to understand the problem Prolific caused for its own ecosystem.