Basic Talk for $10/mo from WM

I have the 2014 MagicJack Plus, just haven't had time to set it up. It supposedly doesn't require connecting to a PC for setup. Future capabilities are said to include an option to use WiFi instead of having to connect to a router via network cable. I'm assuming that the additional USB ports(2) are for either a USB 4G mobile dongle, or a WiFi adapter. The necessary drivers may be accessed through the new SD card port?