Mobile Connect - 3G Application Interface is a software component or driver that enables a computer to connect to mobile broadband networks (such as 3G, 4G, or LTE) via a compatible USB dongle, mobile hotspot, or internal modem. This driver allows your Windows computer to recognize and interface with the mobile broadband device, enabling features like data connectivity, signal monitoring, and management of the mobile connection.

The Mobile Connect - 3G Application Interface driver is typically provided by the manufacturer of the mobile broadband device (e.g., Huawei, ZTE, or other mobile carriers), and it includes necessary tools for configuring the modem, monitoring the connection status, and performing diagnostics.