Creative Sound Blaster ZxR PCIe Sound Card - 24 bit DAC Data Width - 5.1 Sound Channels - Internal - Creative Core3D - PCI Express - 124 dB, 119 dB, 119 dB, 119 dB - 1 x Number of Microphone Ports - 1 x Number of Headphone Ports - 4 x Number of Audio Line Out