WCH USB serial driver for CH340/CH341/CH342/CH343/CH344/CH9101/CH9102/CH9103/CH9143

System Requirements

Installs

wch-ch34x-usb-serial-driver requires a kernel extension to work.
If the installation fails, retry after you enable it in:
  System Settings → Privacy & Security

For more information, refer to vendor documentation or this Apple Technical Note:
  https://developer.apple.com/library/content/technotes/tn2459/_index.html

You must reboot for the installation of wch-ch34x-usb-serial-driver to take effect.

wch-ch34x-usb-serial-driver is built for Intel macOS and so requires Rosetta 2 to be installed.
You can install Rosetta 2 with:
  softwareupdate --install-rosetta --agree-to-license
Note that it is very difficult to remove Rosetta 2 once it is installed.