Motherboard Power

I was looking at updating my psu and i found one with an 8pin power connection. will that work with my 4pin mobo b/c i wanna upgrade sometime to a mobo that has support for 8pin power. And vise versa will an 8pin mobo work with a 4pin psu.

what PSU? I think most of them have either both a 4 pin and an 8 pin, a 4+4 pin, or some sort of adapter so theyll work with both kinds of motherboards

I was dumb and bought a cheap generic one. will never make that mistake again. but will it work. ill probably uprgrade to a NXZT p660 psu. thats about my budget and it does both