USB audio device class spec. 1.0 and USB class spec. 1.1 compliant ^^ Supporting the Plug and features hot-swap, it is easy to use, USB spec 2.0 full speed compliant ^^ Support 48/44 KHz sampling rate for both playback and recording ^^ In digital playback mode, it receives audio stream form PC via USB interface and transmits audio data according to the AESEBU, IEC60958, SPDIF cnsumer interface standards ^^ In analog playback mode, it supports 6 channels codec for analog playback In digital recording mode, it receives SPDIF digital audio input and sends back to PC through USB ^^ ^^ ^^ ^^ ^^