200W max and you have a most powerfull "server" : xeon bi core at 3+Ghz - 64 go DDR4 ECC - and a RAID of ssd m2 like the evo that I tested today if you are interested (https://steemit.com/hardware/@sweecee/hw-review-from-a-sata-ssd-to-a-m2-pcie-samsung-960-evo-250gb-m-2-nvme-ssd). All in all 200W max, and of course a good connection (fiber 1G/1G). You need nothing else.