5.1 channels sound card Features 2/4/6 channel speakers mode. Supports 2/2.1/4/4.1/5.1 speakers Full-duplex playback and recording Superior audio fidelity High quality headphone amplifier Enhanced microphone input sensitivity Specifications Supports 6 channel output Fully compliant with AC97 Revision 2.3 Superior audio fidelity Independent 20 bit ADC and 20 bit DAC Provide 96K/20 bit Multi-channel analog output High quality headphone amplifier Enhanced microphone input sensitivity 4-bit 3D depth control Channel swapping Supports EAPD control PCI Rev. 2.2 compliant with bus mastering modes ACPI compliant power down management Chipset VT1723+1617