I bought a HP Omen 875 PC and the purchase documents say it has 5.1 surround sound. However, I only have 2 Audio In's and One Audio Out (all 3.5 ports). I have read about how you can convert these 3 ports to left/right, center/sub and surround left/right. My computer also shows that just the 3.5 Audio Out is 5.1 (in the Windows Audio Settings Properties). HP says that my mother board is 5.1 combatable but I just don't have the ports to get it so they recommended buying a USB External Sound Card. Either way, I am trying to get hooked up to a Bose System that has 2 bare wires for each of the 5 speakers and a single sub plug and I do not see where I can buy something that converts 1 Audio Out to 10 bare speaker wires and a sub plug. Nor can I find a USB External Sound Card that has L, R, C, Sub, SL, SR (most only have 3 outs). Is there a better, simpler solution to get a good 5.1 system for your computer? FYI, I think my bose system has an amp so I don't need a receiver too!