| Operating System | Native Compatibility | Required Action | | :--- | :--- | :--- | | Windows 11 22H2+ | Partial (Genuine GC/GS only) | Use driver v3.3.3.114 for new chips; for old chips, downgrade to v3.3.2.105 or older. | | Windows 10 21H2+ | Partial (Same as above) | Same as above. | | Windows 7 / Embedded | Full (with warning) | Installer runs, but old HX/HXD chips will still fail due to driver internal PID/VID blocklist. | | Linux (any) | Full | Driver irrelevant – uses native pl2303.ko kernel module. | | macOS | N/A | Prolific does not provide signed v3.3.3.114 for modern macOS; use Apple’s built-in driver. |
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 prolific usbtoserial comm port version 333114 driver
, this driver version is highly valued because it predates Prolific’s implementation of stricter hardware checks that block older PL2303HXA and PL2303XA chips. Operating System Bridge | Operating System | Native Compatibility | Required
Have you had success or trouble with Prolific v3.3.3.114? Share your experience with the community. | | Linux (any) | Full | Driver
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Download and installation (Windows)