I was researching getting a Verizon 4G LTE Jetpack AC791L MiFi connected to Ubiquiti UniFi Security Gateway. I found that the MiFi is actually manufactured by NetGear and they offer a cradle with a 1 Gbps Ethernet port on the back for $69. Unfortunately it was discontinued so finding one in stock is tough: https://www.amazon.com/gp/product/B00QIH1CWO A little large for mobile use but would have been perfect for home.