AOpen is an established market leader, from motherboards to monitors, to multimedia add-on cards, and more. With AOpen products, you are guaranteed the latest in technology development at competitive prices. And because AOpen controls design and manufacturing, from the drawing board to the finished product, the quality of that product is ensured.PRODUCT FEATURES: Support Sound Output to 7.1 / 5.1 / 4 / 2 Speakers;Support 96K/24bit Playback; 48K/16bit Recording;Support Optical S/PDIF Output;DirectSound 3D HW Acceleration;Support most industrial standards of PC 3D sound for gaming, including EAX1.0&2.0, A3D 1.0, and DirectSound 3D SW;Support the latest Dolby Digital Surround EX and DTS ES 6.1/7.1CH DVD soundtrack playback;Sensaura CRL3D HRTF 3D Positional Sound Enhancement with Multi-Drive 7.1, EnvironmentFX, ZoomFX, MacroFX;Unique Karaoke Functionality: Mic Echo, Key-Shifting, Vocal Cancellation;Interesting Magic Voice Feature to Change Users' Voice Tone for IP Phone, Online Games, and Messenger Applications;C-Media Xear 3D 7.1 Virtual Speaker SHIFTER Technology;Support 10-Band Equalizer with 12 Preset Models; 27 Global Environment Effects.