820-2784-A 661-5596 iMac 21.5, A1311 Mid 2010 - 3.6 GHz Core i5, Logic Board NB-3132W
This is a replacement 3.6GHz logic board for the 21.5" iMac.
EEE code: DCT7
Apple part number: 661-5596, 820-2784-A
Compatible models: A1311-Mid 2010-MC508LL/A, A1311-Mid 2010-MC509LL/A, 820-2784-A
Compatible Mac info. : 21.5-inch 3.06GHz iMac , 21.5-inch 3.2GHz iMac, 820-2784-A
661-5596 iMac 21.5, A1311 Mid 2010 - 3.6 GHz Core i5, Logic Board 8202784A