[x3iv130f]

I have built two mini-ITX NAS units.

One is a Jonsbo N1. The other a Jonsbo N2.

Jonsbo N1 is a pretty good case if the only thing you care about is getting a a small footprint as you can stand the case vertically.

Jonsbo N2 is a better more convenient case in a "cube" shape that feels smaller despite being similar in volume.

One of my builds uses an AM4 motherboard with unregistered ECC. With AM4 motherboards you're limited to any "pro" AM4 cpu, four SATA3 ports, and 2.5 gbe.

The other uses a used SuperMicro X10SDV-4C-TLN2F with registered ECC. With the Supermicro board you're stuck with an old integrated Xeon with insufficient cooling but get dual 10gbe ports and six SATA3 ports.