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Prolific Usbtoserial Comm Port Version 333114 Driver -

Prolific Usbtoserial Comm Port Version 333114 Driver -

Prolific USB-to-Serial Comm Port Driver version 3.3.3.114

The (released circa 2009) is a legacy driver often used to solve compatibility issues with older or "clone" PL2303 chips on modern Windows systems. Technical Summary Driver Version: 3.3.3.114 Release Date: Approximately May 2009

If you are currently seeing a "Code 10" error, follow these steps to roll back or manually install version 3.3.3.114. 1. Download and Extract prolific usbtoserial comm port version 333114 driver

Open Device Manager:

Right-click the Start button and select Device Manager . Prolific USB-to-Serial Comm Port Driver version 3

  • PL2303GC, PL2303GS, PL2303GT, PL2303GL, PL2303GE, PL2303SA.
  • Device: Prolific PL-2303 family USB-to-Serial adapters.
  • Driver version: 3.3.3.114 (sometimes shown as 3.3.3.114 or 3.3.114 in device manager/vendor pages).
  • Purpose: Provides a virtual COM port for legacy RS-232 serial devices via USB.
  • Scope: Windows-focused guidance (Windows 7 → Windows 11). Concepts largely apply to other OSes but driver/package names differ.

Because Windows Update often tries to "fix" your working setup by installing a newer, incompatible driver, enthusiasts use this specific workflow: PL2303 issues (Prolific USB to Serial Drivers) Win 11 PL2303GC, PL2303GS, PL2303GT, PL2303GL, PL2303GE, PL2303SA

Frequently Asked Questions (FAQ)

Summary