crwdns2934241:0crwdne2934241:0 Dan

crwdns2934249:0crwdne2934249:0:

I go by the logic board ID number for the 2018 is 820-00850

Use this listing to help you [https://logi.wiki/index.php/Schematics_and_Boardviews_Availability#iMac|logi.wiki]

crwdns2915684:0crwdne2915684:0:

open