Apple Computer, iMac 21.5-inch 3.0/3.4 GHz Core i5 (i5-7400, i5-7500), iMac 21.5-inch 3.6 GHz Core i7 (i7-7700), Compatible Order Number, MNDY2LL/A, MNE02LL/A, Compatible Model Number, A1418, Model Year, Mid 2017, Part Name, Logic Board 3.4 GHz (SSD) - 4GB /Radeon 560, Manufacture Part Number, N/A, EMC Number, EMC 3069, EEE Code, HNWJ, HNWK, Compatible Apple Computer, iMac - 4K (21.5-inch, Mid 2017)
Order you product here: 661-03375 Logic Board 3.4 GHz (SSD) - 4GB /Radeon 560 for iMac 21.5-inch Mid 2017 A1418 MNDY2LL/A, MNE02LL/A, 661-03375
source http://info.applepartsellers.com/661-03375-logic-board-3-4-ghz-ssd-4gb-radeon-560-for-imac-21-5-inch-mid-2017-a1418-mndy2ll-a-mne02ll-a