Hi, I've just bought a HP Prodesk 400 G5 MT with Intel Core i5-9400T and 16GB RAM. It just shipped. I've seen that it's motherboard has 3 sata connectors on which I hope to connect 3 HDDs in zfs raidz.
Now being a hardware newbie I don't know know which HDDs to buy and what should I keep in mind. Do 3.5" HDDs need to be connected to the power supply? And if so, do you know where could I find out if this HP i bought can have 3 HDDs connected to the power supply? And if it can't, do you know any way around this problem?
Also in the product specifications manual, it lists supported HDDs but only lists up to 2TB 7200rpm 3.5 inch drive. Is there any reason why it shouldn't support a 3TB HDD? Since I've found used 3TB WD reds for 30 euros and I'm looking to buy several.