PL-2303 Mac OS X Driver Installation Guide
Document Rev 1.4
PL2303 Mac OS X 10.6 and Above Driver Installation Guide.doc
Prolific Technology Inc. - 1 of 10 - January 16, 2015
All information herein is subject to change without prior notice. Prolific Technology Inc. does not make any warranties regarding
the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial
damage, including but not limited to special, incidental, consequential, or other damages.
PL-2303 USB-to-Serial Bridge Controller
Mac OS X Universal Binary Driver Installation Guide
(for Mac OS X 10.6, 10.7, 10.8, 10.9, 10.10)
Introduction
This installation guide document shows the procedure for installing the Mac OS X driver for the Prolific
PL-2303 devices. The driver can be downloaded from the Support webpage of the Prolific website:
http://www.prolific.com.tw/US/ShowProduct.aspx?p_id=229&pcid=41
System Requirement
The following requirements are needed:
Mac OS X 10.6 to 10.10 operating systems (includes 64-bit support)
Apple Mac OS X compatible computers
PL-2303 USB-to-Serial Cable Adapter
PL-2303 Mac OS X Universal Binary Driver:
md_PL2303_MacOSX-10.6up_v1.5.1.zip (or above)
Mac OS X Security Settings
Apple introduced new security levels on how software should be allowed to install. Follow the steps
below to change the security settings when Mac OS X prevents you from installing the driver software.
1. Run "System Preferences" in Mac OS X and click "Security & Privacy" under Personal tab.
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