Updated driver for rtl88x2bu wifi adaptors based on rtl88x2BU_WiFi_linux_v5.2.4.4_25643.20171212_COEX20171012-5044.
Build confirmed on kernels up to 4.16.0.
See http://www.wolfteck.com/2018/02/22/wsky_1200mbps_wireless_usb_wifi_adapter/ for all the hows and whys around the updates.
I found the original source for this driver on Dropbox linked by the seller on an Amazon listing. Don't you love how reputable these driver bundles are? Nothing says "no one tampered with this after it left the OEM" like downloading from Dropbox / Baidu / etc.
cd rtl88x2BU_WiFi_linux_v5.2.4.4_25643.20171212_COEX20171012-5044
VER=$(cat ./version)
sudo rsync -rvhP ./ /usr/src/rtl88x2bu-${VER}
sudo dkms add -m rtl88x2bu -v ${VER}
sudo dkms build -m rtl88x2bu -v ${VER}
sudo dkms install -m rtl88x2bu -v ${VER}
sudo modprobe 88x2bu