High-definition 7.1 surround sound transforms your PC into a home theater system 8-channel output supports the newest Dolby® Digital EX and DTS® ES 6.1/7.1CH DVD audio formats Supports the latest in 3D audio technologies, including Sensaura® EAX, A3D, & DirectSoundTwo Digital Input/Outputs deliver 24-bit/96KHz audio quality Customize internet audio with the power and surround sound of EAX audio technologies