MikroTik RB924i-2nD-BT5 BG77, KNOT - IoT Gateway. IoT Gateway that uses Narrow Band and CAT-M technology. Low cost, low bandwidth cellular connections, supporting countless mobile operators. GPS Support, integrated WiFi, 2 x 10 100 Mbps Ports ( 1 x PoE-In, 1 x PoE-Out) Integrated Bluetooth 5.2, Router OS with L4 Licence. 1 x SIM slot. RS485 Modbus and GPIO interfaces. Više informacija na linku