If you are looking for a solution to give yourself internet access for your food truck, to use for your POS, and WIFI in your food truck, then this is the device you need.
This will take a cellular Sim card, and share the connection in a wired outlet to your devices, or switch. This will act as a router for your device.
THIS IS ALSO A GREAT BACKUP SOLUTION FOR YOUR WIRED NETWORK.
We sell the SIM card as well, $25 for the first gig, then $14 per gig above that.