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remains sought‑after primarily for compatibility with counterfeit PL2303 chips and older Windows versions. While functional, it is outdated and poses security risks when obtained from third‑party download sites.

Prolific Technology Inc. is a trademark holder. This article is for educational and technical support purposes only. Download drivers at your own risk; always verify file integrity.

Restores functionality to devices showing errors in Device Manager.

Official Prolific website no longer hosts this version. It may still appear on:

'Prolific' driver fix !! - Discussions - Software - Stargazers Lounge

Download only from prolific.com.tw or a verified technical mirror (e.g., GitHub driver archive projects).

Modern Prolific drivers (version 3.8 and newer) include a check that disables older chip versions (like PL-2303HXA and PL-2303X) which Prolific has designated as "End of Life" (EOL). Additionally, these newer drivers block many low-cost "clone" chips frequently found in inexpensive adapters.

This article is your definitive resource. We will explain what this driver is, why version 3.3.2.102 is so important, how to download it safely, and how to fix common errors like “Code 10” or “Device Cannot Start.”