The AM1808 SoC has 1 USB 1.1 Host Port (OHCI). Unfortunately, this means that we won’t get any high speed (USB 2.0) performance.
This is the port where you plug in your wifi dongle or other devices into the EV3.
There are some pin mux issues with the VBUS pin that need to be sorted out. lsm2012 has the VBUS pin specifed as GPIO 1,4. However, this pin is muxed for I2C0 SDA which is being used for EEPROM communications, so obviously, the GPIO is incorrect.