GNU/Linux Ubuntu 21.04 Alfa AWUS1900 Driver Setup Guide [quads id=5] Hi! The linked Tutorial Shows You Step-by-Step How to Install Alfa Network AWUS1900 Wireless 802.11ac Driver in Ubuntu 21.04 Hirsute GNU/Linux. And the Ubuntu Hirsute Alfa AWUS1900 Setup is based on the Realtek rtl8814AU Chipset Driver Installation. Eventually, follow the included instructions to Download and Install RTL8814au Linux Firmware. GNU/Linux Ubuntu 21.04 Alfa AWUS1900 Wireless Driver Installation Guide [quads id=8] Alfa AWUS1900 Ubuntu 21.04 Wireless Driver Installation Guide [quads id=7] [quads id=8]