Read the description carefully,
This is not a 4G router (can't be used with a SIM card), You should have a wired SLT connection for using this router.
✔TP Link TD-W8951 150Mbps Wireless N ADSL2+ Router with Original TP-Link power adapter
✔ Lite used
✔ In good condition
✔ Also ProLink models are available
✔ Call me for more details