Please be warned that counterfeit/fake PL-2303HX Chip Rev A (or PL-2303HXA) USB to Serial Controller ICs using Prolific's trademark logo, brandname, and device drivers, are being sold in the China market. Counterfeit IC products show exactly the same outside chip markings but generally are of poor quality and causes Windows driver compatibility issues (Yellow Mark Error Code 10 in Windows 7 Device Manager). We issue this warning to all our customers and consumers to avoid confusion and false purchase. Only purchase branded cables that provide technical support and warranty service. Prolific does not manufacture nor sell end-product cables.
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How to Install Driver
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1. Unplug any PL2303 USB Device first.
2. Run Driver Installer EXE program to install. Wait to finish.
3. Plug PL2303 USB Device and go to Device Manager to check COM Port number.
4. If PL2303 is embedded, you might need to restart Windows or rescan hardware in Device Manager.