Apple Computer, iMac 27-inch 3.2/3.3 GHz Core i5 (i5-6500, i5-6600), iMac 27-inch 4.0 GHz Core i7 (i7-6700K), Compatible Order Number, MK462LL/A, MK472LL/A, MK482LL/A, Compatible Model Number, A1419, Model Year, Late 2015, Part Name, Logic Board 3.2GHz (M380- 2GB), Manufacture Part Number, 820-00291, EMC Number, EMC 2834, EEE Code, GPF3, GPF4, GTL1, GTL2, Compatible Apple Computer, iMac - 5k (27-inch, Late 2015)
Order you product here: 661-03170 Logic Board 3.2GHz (M390- 2GB) for iMac 27-inch Late 2015 A1419 MK462LL/A, MK472LL/A, MK482LL/A, 661-03170
source http://info.applepartsellers.com/661-03170-logic-board-3-2ghz-m390-2gb-for-imac-27-inch-late-2015-a1419-mk462ll-a-mk472ll-a-mk482ll-a