For all of my DC power stuff I use Anderson Powerpole connectors, and have been known to assemble 4 of them in a weird alignment so that they can be used as a 4 pin connector. I don't solder these on the boards typically as they're a bit larger than I think you're thinking of.
I typically just use one pair, color coded, for each rail I'm bringing in. I.E. black and some other color for ground/return and the "powered" wire..... BUT, my stuff is typically higher power, and i'm generally doing wire to wire, but there are PCB mount and panel mount options available.
You didn't specify what size you're looking for but another option is the 3.96mm pitch connectors which are fairly common in different sizes. You can get both male and female versions in various styles, but not sure about panel mount.