A DC-DC power supply with barrel plug comes with the board and it's enough to drive the system with a NVME SSD, SATA, Wifi card and so on. Unfortunately the needed power cables from motherboard to SATA-power/Molex 4-pin weren't included, so I went for the ATX power supply solution. I had planned to add a dGPU (6-pin PCIe needed) anyway, so no big deal for me Currently I'm installing Windows 10 on a Samsung PM961 256GB NVME SSD.