Amazon.com: 185W PSU A1418 APA007 Power Supply Board for Apple iMac 21.5" A1418 Late 2012 Early 2013 Mid 2014 Late 2015 MID2017 A2116 Early2019 Year ADP-185BF Power Supply Board : Electronics
🍏🖥️🛠️ 21.5" iMac Hard Drive Replacement or SSD Upgrade 2012-2017 (Including Retina) A1418 - YouTube