Thanks again for all the info. Two of my monitors are years old, two of them I bought in the past few months (all are Dell). The nice thing is that a years-old 1070 will work with all 4 - even if refresh rate and resolution is not necessarily up to snuff for something like games, for the everyday stuff they are just fine.

I have to look at the specs, but I’m not sure any of mine support daisy chaining.