Realtek 8814AU USB WiFi driver
Forked off of tprichers fork, which works for newer kernels (tested on 4.13.x, Ubuntu 17.10, TPLINK Archer T9UH)
Added DKMS support
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 TPLink adapter working post kernel updates.