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. Simple Installation and Straightforward Operation—no complex setup required. It seamlessly works with a wide range of devices including PS3, PS4, Blu-ray players, HD DVD players, home cinema systems, and AV amplifiers, ensuring broad compatibility for all your connectivity needs. Aluminum alloy housing: Digitconvert DAC converter delivers enhanced electromagnetic shielding and efficient heat dissipation—outperforming standard ABS plastic for more stable performance. Its rugged design ensures reliable operation even among multiple electronic devices, avoiding signal interference and overheating. Experiencing no sound, electrical noises, or audio delay? Keep in mind that this DAC only supports PCM input format—other formats may lead to noise issues. First, check if the power indicator is lit properly, and use a certified 5V 1A wall charger for power (we recommend avoiding TV USB ports, as their output can be unstable). Also, ensure your audio source is set to output PCM format to prevent compatibility problems, double-check that all cable plugs are securely fastened to avoid noise from loose connections, and if issues persist, try replacing the audio cable with a high-quality shielded one to reduce interference.