Apple Computer , iMac 21.5-inch 2.5/2.7 GHz Core i5 (i5-2400S, i5-2500S), iMac 21.5-inch 2.8 GHz Core i7 (i7-2600S), Order Number, MC309LL/A, MC812LL/A, BTO/CTO, Model Number, A1225, Model Year, Mid 2011, Part Name, Rear Housing, Manufacture Part Number, 604-1633, Compatible Apple Order Number, MC309LL/A, MC812LL/A, BTO/CTO, Compatible Apple Model Number, A1311, EMC Number, EMC 2428, EEE Code, N/A, Compatible Apple Computer, iMac (21.5-inch, Mid 2011), ,
Order you product here: 922-9794 Rear Housing for iMac-21.5 Mid 2011 A1225 MC309LL/A, MC812LL/A, BTO/CTO (604-1633), 922-9794
source http://info.applepartsellers.com/922-9794-rear-housing-for-imac-21-5-mid-2011-a1225-mc309ll-a-mc812ll-a-bto-cto-604-1633