These modems operate in a "dual-mode" state:

📡 How to Install & Fix Driver Issues for Mobinil USB Modem (Windows 10/11)

in 2016. Any original "Mobinil" branded modem is likely a legacy device that may not support the fastest current 4G LTE or 5G bands.

Maximum Downstream Data Transfer Rate. 21.6 Megabits Per Second. Mobinil, USB Modem (21.6 Mbps) Color - White. Mobinil USB Modem (White, 21.6 Mbps)