Macbook pro unibody 13″ 2. 26 ghz mid 2009 mb990ll/a – a1278. 2.53 ghz mid 2009 mb991ll/a – a1278. 2.4 ghz mid 2010 mc374ll/a – a1278. 2.66 ghz mid 2010 mc375ll/a – a1278. 2.3 ghz early 2011 mc700ll/a – a1278.
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