What is this cable?

[MaxRabbit]

My 9800 GT by MSI came with the following cable:

I can't for the life of me figure out what it is based on the manual or anything lol. Please help

 

[spathotan]

SPDIF. Its for the sound. Worthless.

 

[mactronix]

^ Yep
Mactronix

 

[MaxRabbit]

Thanks a lot