Question Do I need to use the 6-pin eAtx12v3 on the ASUS Sage x299 10g motherboard?

Mar 2, 2019
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Hi TH Friends,
Coming close to finishing my build! Wondering if I need to use the EATX12v3 header on the ASUS Sage x299 10g Motherboard? What is it for? Added a link to a picture that shows the header I’m talking about.
o_O
thanks,
Emily66