8channel port help!

[phantom93]

im going to buy a motherboard that has 8channel audio, so there r 6 ports on the back, i know what the Red, Green and Blue do but what do the Bl;ack, Orange and Grey ones do. Are they additional surround ports for extra speakers? or what?

 

[choirbass]

without knowing which motherboard it is specifically, i cant say for sure without guessing. though im sure if you go to the motherboard manufacturers site, they would have a pdf or other documentation you can refer to