GNU/Linux Ubuntu 18.04 Cudy WU650 Driver Setup Guide
Hi! The linked Tutorial Shows You Step-by-Step How to Install Cudy WU650 AC650 Wireless 802.11ac Driver in Ubuntu 18.04 Bionic LTS GNU/Linux Desktop.
And the Ubuntu 18.04 Cudy WU650 Adapter is based on the Realtek rtl8812BU Chipset.
So here below you find instructions to Install rtl8812BU Driver on Ubuntu