The machine icon you selected has a maximum RAM capacity of 16GB. To verify which exact machine you have, please look on the bottom of the iMac stand. Your serial number can be input here and you can then tell us your exact machine:
The machine icon you selected has a maximum RAM capacity of 16GB. To verify which exact machine you have, please look on the bottom of the iMac stand. Your serial number can be input here and you can then tell us your exact machine:
https://everymac.com/ultimate-mac-lookup/