Many Linux users struggle to install Alfa AWUS036ACS Linux drivers. I had the same problem — but luckily, I found a fast and reliable solution.

Adapter Settings in VirtualBox

First, open the emulator you’re using (if the system is installed through an emulator), and then go to the “Settings” section

Next, go to the USB tab and select your network adapter, as shown in the image below

It’s also a good idea to change the network settings to a bridged adapter and select your network card (the target adapter model)

Now start your system and update the list of available packages and their versions using the following command:

sudo apt update && sudo apt upgrade

After installing the packages, it’s time to install the version control system Git. We need this so that in the next step we can clone the repository containing the required drivers

sudo apt install git

This package is needed so we can clone the repository and install Alfa AWUS036ACS Linux drivers properly.

If everything went smoothly, reboot the system using the following command

sudo reboot

After the reboot, open the terminal and navigate to the Desktop

Now clone the repository using the following command:

git clone https://github.com/morrownr/8821au-20210708.git

Navigate to the cloned repository using the following command:

cd 8821au-20210708

Now run the installation script install-driver.sh, which will allow you to install the drivers

sudo ./install-driver.sh

You will be asked to confirm the installation. Confirm it by pressing the “Y” key.

You’re all set. Now you can connect to the internet using the Alfa adapter.

That’s it! You now know how to install Alfa AWUS036ACS Linux drivers and connect to the internet using this USB Wi-Fi adapter.