feature<br> Supports AES/EBU, IEC60958, S/PDIF<br> Truly supports 5.1 channels and 7.1 channels. Can connect to 5.1 speakers<br> Up to 48KHz sampling rate, supporting 32KHz/44KHz/48KHz digital recording function<br> The sound card fiber output only supports a sampling rate of 48KHz, so DTS-CD is 44KH and requires conversion to listen<br> Support Win98/ME/2000/XP/VISTA/WIN7/WIN8/MAC OS9.1 (only 2 channels can be used in MAC)<br> Playback and recording of full duplex audio streams without the need for a built-in PC sound card<br> USB 2.0 is backward compatible with USB 1.1;<br> Compatible with audio device specification V1.0;<br> Supports USB full speed transmission specifications up to 12Mbps;<br> 3 input terminals (one of which is a fiber optic input)<br> 3 output terminals and 1 fiber optic output terminal;<br> Output: 5.1 channels+fiber SPDIF<br> Composition: PC+sound card+amplifier and 5.1 speaker<br> Applicable to: HTPC home theaters and friends with high audio quality requirements (such as watching movies/games/karaoke), can be plugged into regular earphones for voice chat and online karaoke.<br> Other: Enjoy real AC-3 or DTS surround sound effects in your digital home theater or connect directly to a 5.1 active speaker.<br> Packaging includes<br> 1 * Sound card