Hey, I bought the x-540 5.1 speakers. Problem is I only have 1 headphone jack. I know that I can buy a sound card, but those are way too expensive for me. I was wondering if there was a cheaper one somewhere around 20 bucks. I have the Realtek HD speakers and Dolby Sound Room system on the laptop. If that helps... By the way. It's the inputs with the green, orangish, and black.