Below is the link. I can see that one is DTS, other is Dolby, one is PCI express while others are regular PCI. As far as connectors go they all seem to be the same. So why the differences in price?
http://www.newegg.com/Product/Product.aspx?Item=N82E16829132006
http://www.newegg.com/Product/Product.aspx?Item=N82E16829132007
http://www.newegg.com/Product/Product.aspx?Item=N82E16829132013
one more thing, since I will be getting a sound card. I want to be eventually getting a 7.1 headset. But the options seem limited as most are USB. Is there a soundcard with a USB port? Or a good USB/adapter that won't lose any quality
http://www.newegg.com/Product/Product.aspx?Item=N82E16829132006
http://www.newegg.com/Product/Product.aspx?Item=N82E16829132007
http://www.newegg.com/Product/Product.aspx?Item=N82E16829132013
one more thing, since I will be getting a sound card. I want to be eventually getting a 7.1 headset. But the options seem limited as most are USB. Is there a soundcard with a USB port? Or a good USB/adapter that won't lose any quality