Sound Blaster AE-7 Sound Board - 5.1 Sound Channels - Internal - PCI Express - 127 dB - 4 Byte 384 kHz Maximum Playback Sampling Rate - 4 Byte 96 kHz Maximum Recording Sampling Rate - 1 x Number of Microphone Ports - 1 x Number of Headphone Ports - 3 x Number of Audio Line Out - 1 x Number of Digital Audio Optical Output: