I see there is a part number of LM215UH1(SD)(B1) for 2017 and some say it works on a 2019 iMac 21.5”.
LM215UH1(SD)(B2) says it works on 2019 and up.
Will the first (ending in B1) work on my 2019,2 A2116 Mac? The reason I ask is that the B1 can be found for a very good price.