Asus Xonar DS PCI soundcard, 7.1 Channel DTS Digital Surround, 192kHz/24bit Playback Support, Xonar GX2.5 Audio Engine, Hi-Fi spirits in your games, movies and music, DS3D GX 2.5 emulates EAX5, DTS connect brings theater to your desktop, Eliminates 90% noisupgrading from on-board, Swappable Opamp socket, <br /> DTS Technology, Smart Volume Normalizer, Xear 3D Virtual Speaker Shifter, Karaoke Functions, FlexBass, DirectSound3D® GX 2.5, EAX®2.0&amp;1.0, DirectSound® HW, DirectSound SW, A3D®1.0, OpenAL generic modes, 128 3D sounds processing capability, Vocal FX.<br /> <br /> Audio Processor: Asus AV200 High Performance sound processor, 24bit D-A Converter, 24bit A-D Converter<br /> Analog Output Jack: 3.50mm mini jack *4 (Front/Side/Center-Subwoofer/Back) <br /> Analog Input Jack: 3.50mm mini jack *1 (Line-In/Mic-In) <br /> Other line-level analog input (for CD-IN/TV Tuner): Aux-In (4-pin header on the card) <br /> Digital S/PDIF Output: High-bandwidth Optical Connector supports 192KHz/24bit (shared with Back surround output jack) <br /> Front-Panel Header: Intel HDA front-panel compatible and supports HP jack-detection and automatically switch audio output from back-panel to front<br /> S/PDIF Header: Additional SPDIF-out header for connecting graphics card with HDMI audio output