You’re right, although I’d be considering narrower cards and maybe blowers. This is a server build, not a main rig. So I’d get a GPU that’s as close as possible to a glorified encoder ad possible and pocket the power savings. I don’t have ac where I live…

If going m-atx, there’d be enough pcie slots to get a cheap SFP+ 10G nic or better, tho…

I’ll look at the jonsbo stuff tho, thanks !

If OP need compactness, maybe micro atx or mini itx could help.

Although I’ve been thinking about doing like that I haven’t found a good cheap compact case for mass HDD storage, pcie expansion for network upgrades and GPU installs…