This USB sound card is also a USB audio controller and supports 48Khz sampling rate in digital recording and digital\analog audio playback.

In digital playback mode, it receives audio stream form PC via USB interface and transmits audio data according to the AES\EBU, IEC60958, S\PDIF consumer interface standards. Only R L channel PCM audio in 5.1 channel can be conveyed in digital playback mode. In analog playback mode, it supports 6 channels codec for analogue players

In digital recording mode, it receives S\PDIF digital audio input and sends back to PC through USB. Three sampling rates, includes 32KHz, 44.1KHz are automatically locked internally. In analogue recording mode, 48 KHz sampling rate is fixed.

OS support: win98 / XP / 2000 / Vista / Win7 / Win8

Package Content: 1 x USB 5.1 Ch optical Controller Audio Sound Card S\PDIF
1 x USB cable Size: approx. 8.7cm x 6cm x 2 cm Weight: approx. 122g

NOTE: This listing is for a unit with Black casing and not the blue on the photo.