This video shows how to install the drivers for rtl8812au on kali Linux
it also shows how to enable monitor mode on this chipset and use it for packet injection.

To Install Wireless Drivers in Kali Linux follow those commands

• apt-get update
• apt-get upgrade
• apt-get dist-upgrade
• reboot
• apt-get install realtek-rtl88xxau-dkms
• reboot

Alfa AWUS036ACH with rtl8812au chipset https://amzn.to/2CPkkPF captures handshake with rtl8812au

How to Installing rtl8812au Drivers on Kali Linux