Speaker support for "3-jack" motherboards

BGCH24

Commendable
Jun 9, 2016
13
0
1,510
Hi Guys,
Some motherboards have only 3 jacks at their backpannel, and some seem to have 5 or six. Example: asus z170-K vs asus z170-A. Both these cards are listed as having 8CH audio - but what is the difference?

Will I be able to connect a 5.1 speaker set to each motherboard? (this will take 3 jacks: 1 with center speaker + sub, 1 with two rear speakers and 1 with two front speakers.)

Will i be able to connect a 7.1 speaker set to each motherboard?