1. Download the CH340 Driver
  2. Unzip the file
  3. Run the installer which you unzipped
  4. You will see a COM Port number assigned to your machine. In most cases the number is not important.

(Manufacturer’s Link)


CH340 for High Sierra (10.13) or Higher

CH340 for Sierra (10.12)

CH340 for Mavericks (10.9), Yosemite (10.10) and El Capitan (10.11)

Inside the zip file you will find a PDF and a “pkg” file, short version, double click the pkg file, the PDF has some extra information.

See this uninstalling information if you experience issues.

(Manufacturer’s Link)


Drivers should be built into your Linux kernel already and it should work as soon as you plug it in.  If not you can download the Linux CH340 Driver (updating your linux install so the driver is included is suggested).

(Manufacturer’s Link)

Original Source: https://sparks.gogo.co.nz/ch340.html