Hi,
Hope some experts here can help me with this question.

This is regarding Tenda 4G680 4G LTE Wireless N300 WiFi Router.

What I understood is this model uses 4G LTE as primary connection while wired connection as backup connection. The device automatically fails over to wired connection when 4G signal is lost and fail back when it resumes.

Let's say I put my Digi broadband SIM with no wired Internet connection on the router.

Can I connect my PC that doesn't have wireless network adapter, to the Ethernet port on the router via Ethernet cable to surf Internet using Digi LTE broadband? Are those Ethernet ports on the back of the router can be used for such purpose?

Thanks in advance.