After unzipping the folder, double click on the CH34xVCPDriver.pkg file.
Alternatively you may use the DMG file, which mounts a disk image, then goto the mounted drive in finder and drag the CH34XVCPDriver app into the Applications folder to install it. Then skip down to the next section for OSX version 11 and later.
A security notification may open after the installation begins. Use Touch ID or enter your password to allow the installation to continue.
You'll see a progress bar. Once the installation has completed you'll see a message in the dialog box that the installation was successful. Click Close to exit the box.
This driver application may open automatically following the successful install above.
If it does not, open LaunchPad, find CH34xVCPDriver Application, and open the App.
Click Install to install the driver.
If the page that loads looks like the image on the left then follow the next two steps, otherwise jump down two steps.
In Security and Privacy, click on the lock icon in the lower-left corner to make changes.
Or if you are running OSX 13 or above, the dialog will be slightly different and the Open System Settings button will take you to the Driver Extensions page. There you will need to toggle the CH34xVCPDriver to enabled.
If you missed the previous step then you will have to manually find the page in System Settings. Goto the General section, then Login Items and Extensions, scroll to near the end and goto Driver Extensions.
System Settings -> General -> Login Items and Extensions -> Driver Extensions
Then click the toggle to enable the CH34xVCPDriver.
Finally, quit the application. That's all there is to installing the WCH USB to serial driver for Mac OS X 11.0 and above!
If you are running the older supported version of Mac OS X 10.9 to 10.15, then you will need to restart your computer and follow the steps detailed on pages 3 an 4 in the PDF included in the zip folder.
Page last edited January 30, 2025
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