Use VIA VT1723 Envy24D multi-channel sound effect chipset - Meets PCI-Express x1 specification - Meets 8-channel AC 97 specification - 48kHz sound sampling rate - Supports playback and recording - Supports front L/R surrounding L/R Center / Subwoofer S/PDIF-Out - Supports rear surrounding L/R Linear input L/R single channel Mic-in S/PDIF-In - 7.1-channel PCI-e sound card uses PCI-Express bus slot - Supports 8-channel surrounding output - Supports DLS bank technology - Compatible with DirectSound 3D and EAX effect CD: http://m5.img.dxcdn.com/CDDriver/CD/sku.368913.rar