

We issue this warning to all our customers and consumers to avoid confusion and false purchase. 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 Device Manager). Please be warned that counterfeit (fake) PL-2303HX (Chip Rev A) USB to Serial Controller ICs using Prolific's trademark logo, brandname, and device drivers, were being sold in the China market. Log-in to our Support webpage to download more files:
USB HL 340 DRIVER WINDOWS 7 FOR MAC OS

USB HL 340 DRIVER WINDOWS 7 FOR MAC OS X
For Mac OS X 10.7 Lion (32-bit and 64-bit kernel).For Mac OS X 10.8 Mountain Lion (64-bit).Mac OS X Universal Binary Driver v1.5.1 (PKG file format) Go to System Preferences - Security & Privacy and click Allow.ĭownload File: PL2303_MacOSX_v1.5.1_20160309.zip NOTE: Mac OS High Sierra 10.13 introduces a new feature that requires user approval before loading new third-party kernel extensions. For PL2303 GC, GS, GT, GL, GE, GD, GR chip versions.

For Prolific USB VID_067B&PID_2303 Only.For PL2303 H/HX/HXD/EA/RA/SA/TA/TB chip versions.For Mac OS X El Capitan (version 10.11).For Mac OS Big Sur (version 11) - see NOTE below.Mac OS X Universal Binary Driver v2.1.0 (PKG file format)
