Sound Blaster X4 External Sound Card - 24 bit DAC Data Width - 7.1 Sound Channels - External - USB Type C - 3 Byte 192 kHz Maximum Playback Sampling Rate - 3 Byte 96 kHz Maximum Recording Sampling Rate - 1 x Number of Microphone Ports - 1 x Number of Headphone Ports - 1 x Number of Digital Audio Optical Input - 1 x Number of Digital Audio Optical Output: