http://support.apple.com/kb/HT4132 Please look at the model numbers for the 2011 13.3" Macbook Pro ... I believe the i5 and i7 model numbers are switched. I am asking because I am trading in my old Macbook Pro (just got a new one) and I want to make sure I get the model number correct. I just checked my model number on the box that came with my i5, it seems that model number is MC700LL/A ... Every online retailer seems to agree with me. However, Apple is claiming that the model number is MC724LL/A Can anyone confirm if this article is wrong? I'm trying to be honest and not trade in the wrong model (even though it'll net me more money).