You can download driver for Mustek GSmart Mini 3 Camera 1.2 here, but DriversKit`s Team strongly recommend you to use Driver Updater Pro for finding latest version of this driver. You can download Driver Updater Pro here.
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Search Mustek GSmart Mini 3 Camera 1.2 driver at Google
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Search Mustek GSmart Mini 3 Camera 1.2 driver at AltaVista