The E5576 has a micro-USB port. When you plug it into a laptop via USB, you can use it as a (instead of using Wi-Fi). This can be useful if:
If the driver fails to install or the Huawei E5576 is not detected: Huawei Mobile Wifi E5576 Driver Download
Follow the macOS installer prompts and enter your administrator password if requested. The E5576 has a micro-USB port
Connect to the device via Wi-Fi using the SSID and password found under the back cover. Huawei Mobile Wifi E5576 Driver Download
Having the correct driver ensures that your Huawei E5576 operates at peak efficiency. By using the official Huawei sources and following the steps above, you can maintain a fast and stable internet connection.