Help with some same cables

[oache4u]

i have this motherboard msi gaming x99a
https://www.msi.com/Motherboard/X99A-GAMING-7.html#hero-specification
i dont know wath cables i need for the audio ports to hook up the soundbar i need something like 5x RGB( RCA ) To JACK 3.5 ive been looking at some cable on the internet but most of them are just 3x to jack

 

[oache4u]

Celcus sound bar :
http://i.ebayimg.com/00/s/MTQ4MFgxNjAw/z/FWoAAOSwPhdVDDCR/$_1.JPG +
a LIN IN http://i.ebayimg.com/00/s/MTQzNlgxNjAw/z/2bEAAOSweW5VDDCF/$_1.JPG

 

[oache4u]

this is from motherboard :
https://asset.msi.com/resize/image/...7.png62405b38c58fe0f07fcef2367d8a9ba1/600.png

this from soundbar :

http://i.ebayimg.com/00/s/MTQ4MFgxNjAw/z/FWoAAOSwPhdVDDCR/$_1.JPG%20+a%20LIN%20IN%20http://i.ebayimg.com/00/s/MTQzNlgxNjAw/z/2bEAAOSweW5VDDCF/$_1.JPG

Sorry for this late update :X

And in the feature for a audio sistem 5.1 ,just to know

 

[oache4u]

thanks