I have a couple of questions please as I am a newbie to drones and I have the DJI Pro 3 with the on-screen remote.

1) On the remote should I install a Micro-Sd Card if yes what is the max size and per second transfer rate?
2) On the drone itself should I install a Micro-Sd Card if yes what is the max size and per second transfer rate?
3) Why does one install the Micro Sd card on the remote vs the drone itself?  Is it better to have it on both and why?

HI, I am sure I have read it somewhere that you cannot download photos/video from your drone to the remote, but only from your drone to a mobile/other device. I have installed an SD card in my remote but I don't think it makes much difference.  Here is a list of SD cards that DJI recommend, I bought the mini SD card 64GB V30 A2 which works better than a previous SD card.