I'm new to pcs and I'm thinking about buying additional fans for better airflow for my pc. I have the Asrock B550AM Gaming M-ATX motherboard. I couldn't post a link for a clearer view of the motherboard, but you can search it up. I don't really understand how to connect the fans if I were to buy them. I researched about it a little and I was thinking of buying a fan hub/splitter and connect that to the connector labelled CHA_FAN2 on the bottom of the motherboard. However, when I looked at the area where CHA_FAN2 was, there were no pins so I'm kind of confused. How would I add additional fans?