The Xonar D1 PCI sound card offers rich gaming audio effects and extensive Dolby Home Theater features for users whose PCI express slots are already occupied with other devices. Complete Dolby technologies. DS3D GX 2.0 for better gaming in Vista. VocalFX makes MMOG chatting more lively - 35 times cleaner audio than on-board audio. S/PDIF output to VGA cards for HDMI output. XONAR D1 also includes low-profile bracket for home theater computer chassis.