Gearbest USB 2.0 Ethernet Adapter 10/100Mbps Adapter

I successfully installed it on my El Capitan MacBook air 13, helped by this kind man and his website. http://inkandfeet.com/how-to-use-a-generic-usb-20-10100m-ethernet-adaptor-rd9700-on-mac-os-1011-el-capitan