Here is the motherboard I purchased.
Gigabyte Z390 GAMING X ATX LGA1151 Motherboard
Here is the power supply I just drove 3 hours round trip to purchase.
I found out that the motherboard has an extra 8+4 12V connector that this particular power supply does not have.
There are three 4-pin Molex connectors. Can I use these adapters from Amazon in order to supply power to these two connectors?
I am not overclocking or running an internal video card. Just plan to use the onboard video.