Connect Verizon extender to iMac without Ethernet port using USB-C

What model # is the Version Extender...?

I'm asking, because I can not find any Version Extenders with a USB-C connection.

To use Ethernet from the Extender to the iMac, you will need an Ethernet cable and a USB-C to Ethernet adapter as mentioned by John Galt.

You should also be able to setup the Version Extender and then connect the iMac to it via Wi-Fi without using a cable.

Connect to the internet with your Mac - Apple Support

Connect your Mac to the internet using Ethernet - Apple Support says,

"If your computer doesn’t have an Ethernet port, you can use a USB to Ethernet Adapter or a Thunderbolt to Gigabit Ethernet Adapter."

Belkin USB-C to 2.5Gb Ethernet Adapter - Apple