Original Apple SD Card Reader Board 820-2531-B iMac 21.5″ A1311 2009 2010

IMac 21.5″ 3.06GHz Core 2 Duo (A1311) – Late 2009. iMac 21.5″ 3.33GHz Core 2 Duo (A1311) – Late 2009. iMac 21.5" 3.06GHz Core i3 (A1311) - Mid 2010. iMac 21.5" 3.2GHz Core i3 (A1311) - Mid 2010. iMac 21.5" 3.6GHz Core i5 (A1311) - Mid 2010.

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