Usage Tips:Digital to Analog --- DAC audio converter is designed for converting coaxial or toslink digital PCM audio signals to analog L/R RCA and 3.5mm Jack audio simultaneously. ( Not support Analog to Digital) Excellent Performance --- The sound of the digital to analog audio adapter is synchronized when connected, without delay. The durable and stable transmission makes you do not have to worry about poor sound quality after long-term use. Wide Compatibility --- The signal converter supports sampling rate at 32KHz, 44.1KHz, 48KHz, 96KHz, 192KHz and 24-bit SPDIF Incoming Bit Stream on left and right Channels. It can be used for PS3, PS4, Xbox, Blu-ray Player, HD DVD, Home Cinema Systems, AV Amps, etc. Multi-Point Connection --- Optical to rca adapter supports uncompressed 2.1-channel PCM or LPCM digital audio signal output, will not supports 5.1 channel Dolby sound. Thoughtful Service --- The package includes DAC Converter*1, Toslink Cable (Optical cable)*1, USB Power Cable*1, User Manual*1. We provides 24-hour online technical support and 30-day refund. We are at your service. If you have any questions, please feel free to contact us.