What iPad do I have?

[iMore Question]

I need to know what my ipads are called so I can purchase accessories for them. Are they ipad, ipad2, ipad air, 2 gen, 3 gen, 4 gen, 5 gen 6 gen, 7 gen. I cannot tell by the model number. Here are the numbers. Thank you for your help. My 2017 ipad model #MPGT2LL/A. Also I have and older one model # MD522LL/A. I have found several names so I'm not sure what they are called. please help

 

[Just_Me_D]

iPad 5th gen

iPad 4th gen