I searched the RC 2 manual and this forum to no avail.  The RC 2 has a micro SD slot.  What is it used for? Can you simultaneously record to the SD card in the drone and RC?  Can you transfer data from the drone card to the RC card?  

Hi there. The MicroSD card support on the RC 2 lets you expand the storage for direct screen recording and caching.  Your footage will be stored in the aircraft microSD card. For ways to transfer files, please refer to this link: https://support.dji.com/help/con ... p;re=US&lang=en. Have a nice day.