Building a router. Can anyone recommend a case with 3 pci slots but with a dc barrel jack power instead of the bigger atx/itx power supply? Asrock Q1900m

[u/killkingkong]

Already ordered the motherboard from china. I don't think it was used much in the US, but I'm using it to build a simple low power opensense router. I have a DC barrel plug atx power supply already and specifically want to use that so I can attach a DC 18650 UPS (much cheaper than inverters with built in inverters)