Click and navigate to the folder where you extracted version 3.3.3.114.
Installing the Prolific USB-to-Serial Comm Port version 333114 driver requires careful attention, especially on modern Windows 10/11 systems. Follow this exact procedure.
: It provides a stable bridge between legacy industrial equipment (like CNC machines, GPS units, and ham radios) and modern operating systems.
: Make sure the driver version you download is compatible with your operating system version (Windows 10, 8, 7, etc.) and architecture (32-bit or 64-bit). prolific usbtoserial comm port version 333114 driver
Select manufacturer "Prolific", choose version , and click Next. Method 2: Disabling Automatic Updates
Right-click the .exe file and select Run as Administrator .
chip, a widely used component for converting USB signals to serial communication for devices like radio programmers, GPS units, and barcode scanners. Google Groups The Counterfeit War The Proliferation of Fakes Click and navigate to the folder where you
Prolific USB-to-Serial Comm Port Version 3.3.3.114 Driver: A Comprehensive Guide The Prolific PL-2303 Go to product viewer dialog for this item.
If Windows Update overwrites your driver in the future, Windows usually remembers your manual selection. Open and right-click your Prolific COM port. Select Properties and navigate to the Driver tab. If available, click Roll Back Driver .
Tip: Search for PL2303_Prolific_DriverInstaller_v333114.exe or ser2pl.inf 3.3.3.114 . Step 2: Uninstall the Current (Non-Working) Driver Plug in your USB-to-serial adapter. Right-click the Start button and select . Expand Ports (COM & LPT) . : It provides a stable bridge between legacy
Search for in the Start menu.
The Prolific USB-to-Serial Comm Port version 3.3.3.114 driver remains the industry standard for reviving older serial equipment. Whether you are configuring a Cisco router, programming a radio, or running a CNC machine, this legacy driver bypasses modern software locks to get your hardware back online. By following the manual selection process, you can ensure a stable, error-free connection for years to come. Share public link
If you are working with hardware like ham radios, PLCs, network switches, or Arduino boards, you have likely encountered the Prolific USB-to-Serial adapter. It is one of the most common chips used to bridge USB ports with older serial communication protocols.
The Prolific PL2303 chip family has been manufactured for over two decades. Over that time, the market became flooded with counterfeit or cloned PL2303 chips.