@bagicanThanks for replay. Do you think this motherboard can be powered by normal ATX psu?
I currently have one build with supermicro U1 case, Asrock J4125-ITX, and second one (identical case) is waiting for another build.
I was wondering if can I use build in power supply (ATX) for this motherboard. As you say it supports 12V then it is possible it will work with some converter (because motherboard don't have standard atx12v connector).