WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
If the USB memory is connected to the USB port, the screen displays the USB memory size, the Product ID, Vender ID, and connection status.