What do I need to buy along with this to fit 12 x HDD in? FD website is unclear and no YT videos show a fileserver build.

I have a I have a Supermicro 2U chassis with BPN-SAS2-826EL1 backplane.

Can I just buy a modern motherboard with a 12/13th gen Intel CPU and connect it?

What sort of HBA and cable do I need?