CONDITION ---Used OEM Apple ---Tested working 100% WHAT'S INCLUDED ---1 - Power supply (205W) COMPATIBILITY iMac 21.5" A1311 ---iMac10,1 Late 2009: MB950LL/A (3.06 GHz Core 2 Duo) ---iMac10,1 Late 2009: MC413LL/A (3.06 GHz Core 2 Duo) ---iMac10,1 Late 2009: MB950LL/A (3.33 GHz Core 2 Duo) ---iMac10,1 Late 2009: MB950LL/A (3.33 GHz Core 2 Duo) ---iMac11,2 Mid 2010: MC508LL/A (3.06 GHz Core i3) ---iMac11,2 Mid 2010: MC509LL/A (3.2 GHz Core i3) ---iMac11,2 Mid 2010: MC509LL/A (3.6 GHz Core i5) ---iMac12,1 Mid 2011: MC309LL/A (2.5 GHz Core i5) ---iMac12,1 Mid 2011: MC812LL/A (2.7 GHz Core i7) ---iMac12,1 Mid 2011: MC812LL/A (2.8 GHz Core i7) ---iMac12,1 Late 2011: MC978LL/A (3.1 GHz Core i3) IDENTIFYING NUMBERS ---Apple Part #:661-5299.
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