So the specs are a crap shoot, if you are just going to run a NAS and a few app's you dont need much, ": im on an i3 8350k 32gb ram" but if you plan to add more in the future you might want more horse power. I would say any 4th gen I3/5/7 should run a nas with no issues, the thing youll wanna calculate is if you have power use concerns or if you wanna expand in the future what would be needed.