Blackmagic Desktop video app connector setting

Blackmagic decklink Quad2 card connector setting: Default
The default connector setting is correct. You do not need to change anything.

Blackmagic decklink 8K pro card connector setting : “Input 1 in or out”

The connector (1) setting needs to be changed to “input 1 in or out” for each 8K pro card. When you change connector (1) of each card, the other connectors of the same card automatically change to “input X in or out”. If there are two 8K pro cards installed, you will need to change the connector setting (1) of each card.

Open