SD card questions on a android converted Nook

[cpeters1965]

Good afternoon all,
I recently was given a color nook by a friend. Great device and will be handy for me I am trying to load all the apps onto a sd card. Purchased a 16gb card but the nook states I have 2 sd cards so now am lost. Can anyone assist?

 

[Rukbat]

sdcard is internal (eMMC) storage. extSdCard is the external SD card.