HP t620 PLUS. Ignore what the manufacturer says, it'll run 32GB RAM. I have a USB3 card in mine for more hard drives. ESXi with 5 VMs running all the time. Powe

HP t620 PLUS. Ignore what the manufacturer says, it'll run 32GB RAM. I have a USB3 card in mine for more hard drives. ESXi with 5 VMs running all the time. Power consumption is like 6-12W for the base unit, plus whatever your drives and cards add. Or use a Pi4 with USB disks.