RAM for iMac 2015 models

If you have an old Mac at home and you want to make it a bit faster, installing extra RAM is an option. For example, working with applications and programs will go a little faster than before. First, look up which iMac from 2015 you have. This way, you can make sure to buy the right RAM for your iMac. Is your Mac not listed? You unfortunately can't expand the memory of this model.