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Original post by: gerard1021 ,


Yes you can use any  Apple mxm 3 a/b graphics card it’s just plug and play…the letters a/b are the sizes, a/ being the smaller size for 21.5. The b cards although bigger can still fit by removing a piece of  plastic, you’ll see what I mean once your in there… It’s really easy get yourself a step by step guide if you haven’t taken one apart before.