USB 6 Channel 5.1 External Audio Sound Card S/Pdif Plug And Play * External 6 channel (5.1) sound card * USB sound is an USB audio controller. It supports 32KBz,44.1khz.(which two need driver or application software support) and 48KHz sampling rate in digital recording * Outputs: SPDIF out, Front out, Rear out, Cen/Bass out * In analog recording mode, fixed 48KHz sampling rate is supported by analog audio recording