Main Features DIGITUS 7.1 Channel Sound card, PCI Add-on card 48/44.1 KHz sampling rate VIA VT1723 chipset Full-duplex playback and recording Full-duplex 8CH DAC/2CH ADC Support 48/44.1 KHz sampling rate for both playback and recording Supports the latest Dolby® Digital EX and DTS ES 6.1/7.1 CH DVD soundtrack playback DirectSound™ 3 HW acceleration PCI Rev. 2.2 compliant with bus mastering modes ACPI compliant power down management System Requirements: Pentium-class computer with one available PCI slot; DirectX 8.1 above is required Support Windows 7, Vista, XP