Creative 7.1 Portable Sound Card with Headphone Amplifier - 24 bit DAC Data Width - 7.1 Sound Channels - External - Creative - USB 3.0 - 93 dB - 3 Byte 96 kHz Maximum Playback Sampling Rate - 3 Byte 48 kHz Maximum Recording Sampling Rate - 1 x Number of Headphone Ports: