Hi Brett
Pay attention to your requirements; there are several things to keep in mind.
Each DeckLink 8K Pro Mini card requires a PCI-E x8 slot on the motherboard.
So, if you need two or more similar cards, you'll need to choose the right
CPU and the right
motherboard.
You`ll need a minimum number of PCI-E lanes for your configuration, and the corresponding CPU + motherboard with "enough" physical PCI-E slots and "enough" Pci-E lanes over each slot.
I hope help.