Apple Computer , iMac 21.5-inch 3.1 GHz Core i3 (I3-2100), 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, MC978LL/A, MC812LL/A, BTO/CTO, Model Number, A1311, Part Name, Glass Panel, Manufacture Part Number, N/A, EMC Number, EMC 2428 EMC 2496, EEE Code, N/A, Compatible Apple Computer, iMac (21.5-inch, Late 2011), iMac (21.5-inch, Mid 2011), ,
Order you product here: 922-9795 Glass Panel for iMac 21.5 inch Late 2011 A1311 MC978LL/A, MC812LL/A, BTO/CTO, 922-9795
source http://info.applepartsellers.com/922-9795-glass-panel-for-imac-21-5-inch-late-2011-a1311-mc978ll-a-mc812ll-a-bto-cto