Prolific Usbtoserial Comm Port Version 333114 Driver Jun 2026

Prolific USB-to-Serial COM Port driver , specifically version 3.3.3.114, is a critical software component for systems using older PL-2303 chipset-based adapters to connect serial peripherals like barcode scanners, GPS receivers, and industrial equipment to modern computers Overview of Version 3.3.3.114 Release Context

: Originally released around 2009, this version is frequently cited as a "legacy" or "old" driver. Hardware Compatibility : It is primarily used with older PL-2303 HXA/X Operating System Support prolific usbtoserial comm port version 333114 driver

If you see VID_067B&PID_2303 , you have a Prolific-based adapter. Version 333114 is designed for these IDs, particularly REV_0300 and REV_0400. Download and installation (Windows) The is a critical

Download and installation (Windows)

The is a critical legacy software component used to bridge the gap between older serial (RS-232) hardware and modern USB-equipped computers. Released around January 2009, this specific version is often sought by users attempting to resolve the notorious "Code 10" error or "This is not Prolific" message that frequently occurs with older or third-party PL2303 chipsets on newer operating systems like Windows 10 and 11. Why Version 3.3.3.114 is Important Prolific Usb-to-serial Comm Port Version 3.3.3.114 Download Prolific USB-to-Serial COM Port driver

Select the Prolific driver from the list (ensure it shows version 3.3.3.114) and click . Troubleshooting Common Issues

Supports Prolific PL2303 H, HXA, X, EB, and G series chips. Why This Version is Used