The Sky4 LTE Upgrade kit includes a Category 4 Modem and AT&T SIM card. This LTE upgrade allows your WiFiRanger Sky4 to deliver Cellular internet to your devices (requires AT&T data plan for Cellular internet). A Sky4 equipped with an LTE modem can also use Load Balance with both Cellular and WiFi internet sources for increased throughput and reliability.
IMPORTANT: Selecting an LTE Modem as part of this upgrade pack will require a monthly cellular-data plan to access internet from cell towers available in your destination area. Be sure to check with your cellular Carrier to determine if they can add the additional modem and SIM card to your existing data plan or a separate data-only plan.