Apple Computer , iMac 27-inch 2.7/3.1 GHz Core i5 (i5-2500S, i5-2400), iMac 27-inch 3.4 GHz Core i7 (i7-2600), Order Number, MC813LL/A, MC814LL/A, MD063LL/A, Model Number, A1312, Model Year, Mid 2011, Part Name, Power Supply 310W, Manufacture Part Number, 614-0501, ADP-310AF, Compatible Apple Order Number, MC813LL/A, MC814LL/A, MD063LL/A, Compatible Apple Model Number, A1312, EMC Number, EMC 2429, EEE Code, DK6T, DUU, Compatible Apple Computer, iMac (27-inch, Mid 2011), ,
Order you product here: 661-5972 Power Supply 310W for iMac 27 inch A1312 MC813LL/A, MC814LL/A, MD063LL/A, 661-5972
source http://info.applepartsellers.com/661-5972-power-supply-310w-for-imac-27-inch-a1312-mc813ll-a-mc814ll-a-md063ll-a