What does Air Max action replay card for PS2 do?

I just had a Air Max action replay card given to me it fits into the PS2 memory card socket but I am not sure what it is used for. I am assuming cheats or something. At first I thought it was a memory card but I guess not.

Action Replay are game cheats. I don't know how you use it with the PS2 though.

is it new i havent heard of it and cant find it on code junkies

I don't know if it is new or not. Someone gave it to me with a bunch of PS2 stuff. It looks like a memory card and fits in the slot but doesn't show up in the browser. I googled it but couldn't find it. I am going to try it again.
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My bad it was a AR Max and not air max. That is why I couldn't find it (duh).It is for cheats I guess even though I don't use cheats on games. It is still supposed to be a memory card as well but it is not showing up in my browser.