MSI B450 GAMING PRO carbon ATX am4 extra 4-pin plug
MSI B450 GAMING PRO carbon ATX am4 extra 4-pin plug
I've noticed the PSU has an 8-pin EPS connector, but I'm not sure why it's missing from some sources.
Yes, the PSU includes 8-pin connectors. The motherboard requires a 4-pin connector to provide an additional 12 volts.
The board supports both 8-pin and 4-pin EPS connectors. This allows you to use either or both, depending on your needs. More pins generally mean higher power and current capacity. You're comfortable using just the 8-pin connector, even if a 4-pin version is available. Your preferred CPU might require a (non-existent) 2-pin EPS connection.