The Samsung Mobile USB Modem II 10 is a software package that allows you to use your Samsung mobile device as a USB modem to connect your computer to the internet. This driver is typically used when you want to share the mobile device's 3G/4G LTE internet connection with your PC via a USB connection. It can be useful when you're traveling or in areas where a wired internet connection isn't available, but your mobile device has a cellular data connection.