ITEM NAME:Mini USB DAC Decoder PCM2704 USB Sound Card Analog DAC Decoder Board ZNQ DXF.The main chip uses BB's HIFI-class PCM2704 USB decoder chip. USB support sampling rate: 16BIT/32-48KHZ. USB support system: WINXP/WIN7/WIN8, Apple OS 9/OS X, Android 4.1 or higher (requires OTG support).