what is the type A adapter? can you help to send some picture and information about it

hi,

my name is Xue Wenzong, the EFB manager from Xiamen Airlines from China. we find that APPLE reliese released approval for their consumer product chargers to be plugged into a 115 VAC 400 hertz receptacle, you can see this link"https://support.apple.com/en-us/HT202916", my question is what is the type A adapter? can you help to send some picture and information about it?

thanks!

<Email Edited by Host>