Hello, it's my first time building a pc. When I was picking a PSU (Seasonic Focus) at pcpartpicker website, it said my motherboard (Gigabyte Z390 UD) has an additional 4-pin ATX power connector. I've tried to search online, but I'm not really good at understanding those technical answers. What can I do? Any PSU recommendation for me? Thanks
(the pc specs: https://es.pcpartpicker.com/list/2tbt9G)
(the pc specs: https://es.pcpartpicker.com/list/2tbt9G)