CH340 is a series of USB bus adapters, while CH340G is the USB to UART device adapter. If you want to use CH340G on your computer, you’ll need to download and install the CH340G driver for your Windows computer.

There are two ways you can download or update your CH340G driver:

Option 1 – Manually – You’ll need some computer skills and patience to update your drivers this way, because you need to find exactly the right the driver online, download it and install it step by step.


Option 2 – Automatically (Recommended) – This is the quickest and easiest option. It’s all done with just a couple of mouse clicks – easy even if you’re a computer newbie.

Option 1 – Download and install the CH340G driver manually

CH34G is manufactured by Arduino, and Arduino provides the driver for users to download. So you can download the corresponding driver from the official website.

Note: Before starting, you should know the operating system running in your computer, such as Windows 10 64 bit.

Here’s what you need to do:

  1. Visit the Arduino support page.
  2. Choose the latest version of the driver, then click the driver to download. Be sure to download the driver that is compatible with your operating system.

  3. Unzip the downloaded file, then run the downloaded
  4. Run the .INF file and follow the prompted instructions to install.

Now you should have the CH340G driver installed in your computer.

Option 2 – Download and install Magic Mouse driver automatically

If you don’t have the time, patience or computer skills to update the CH340G driver manually, you can do it automatically with Driver Easy.

Driver Easy will automatically recognize your system and find the correct drivers for it. You don’t need to know exactly what system your computer is running, you don’t need to risk downloading and installing the wrong driver, and you don’t need to worry about making a mistake when installing.

You can update your drivers automatically with either the FREE or the Pro version of Driver Easy. But with the Pro version it takes just 2 clicks:

  1. Download and install Driver Easy.
  2. Run Driver Easy and click the Scan Now button. Driver Easy will then scan your computer and detect any problem drivers.
  3. Click Update All to automatically download and install the correct version of all the drivers that are missing or out of date on your system (this requires the Pro version – you’ll be prompted to upgrade when you click Update All).
Note: You can do it for free if you like, but it’s partly manual.

4) Restart your computer to take full effect.

The Pro version of Driver Easy comes with full technical support.
If you need assistance, please contact Driver Easy’s support team at
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