Smallest mATX case that can support sfx psu? No GFX card needed? Zalman Cubix?

Hi, I have a an Asrock N100M Micro ATX motherboard I want to build an appliance and stuff into a corner somewhere.

It would need a LAN card at most but probably never a full size gfx card. I'm landing on the Zalman CUBIX as it's pretty cheap at $35 bucks. It still seems like there could be something more compact. Is there anything smaller than this?