if you look at the pictures, on the circuit board there is a square "thing" with SanDisk written on it - it is most visible in the second picture on the second page of the internal photos:
https://apps.fcc.gov/eas/GetApplicat...tml?id=2020874
You must magnify the picture, it is on the horizontal portion, with what looks like a white dot on it. Since I had the dot on the internal card on the Mini, I thought that might be some kind of flash memory.