모델 A1419 / EMC 2806 / Late 2014 또는 Mid 2015. 3.3 또는 3.5 GHz Core i5 또는 4.0 GHz Core i7 (ID iMac15,1); EMC 2834 late 2015 / 3.3 또는 3.5 GHz Core i5 또는 4.0 GHz Core i7 (iMac17,1) 모두 Retina 5K 화면 장착
It appears that a PSU for your Late 2015 27” Core i5 iMac can be found here for $74.99 used. Of course, Apple does not sell replacement units directly, so the secondary market (like eBay) is your only choice…