Realtek 8814AU USB WiFi driver.
Forked from Zebulon2 repository which is based on version 4.3.21 of an Edimax driver for the EW-7833UAC device.
Updated with support for kernels >= 4.14.
Enabled USB 3 by default.
Enabled VHT functionalities.
From your src dir
sudo cp -R . /usr/src/rtl8814au-4.3.21
sudo dkms build -m rtl8814au -v 4.3.21
sudo dkms install -m rtl8814au -v 4.3.21
This should keep your 8814AU adapter working post kernel updates.