[Digital to Analog Audio Converter] to convert coaxial or digital optical audio input to analog stereo L/R RCA and 3.5mm audio signal output. Be sure to change the audio output to PCM or LPCM. (Note: It is only a digital to analog audio converter, not an analog to digital audio adapter, input and output cannot be reversed.) [Support multiple sampling rates] Supports sampling rates at 32kHz, 44.1kHz, 48kHz and 96kHz; 24-bit S/PDIF input bit on left and right channels. Support speakers and headphones playing simultaneously. Built-in interference immunity and no signal input noise reduction circuit, providing electromagnetic noise-free transmission. (Note: Does not support 192kHz sampling rate audio) [Easy to use and simple] Connect the optical or coaxial cable to the signal source and the converter, and then connect the RCA or 3.5mm audio cable to the output device and the converter. Set the audio to uncompressed 2-channel LPCM or PCM in your TV or other source devices. (Note: 5.1 channel is incompatible, set the audio output to PCM or LPCM: Setting-Audio-Audio-PCM/LPCM) [Wide Compatibility] This DAC audio converter is compatible with devices with coaxial or toslink digital output, easy to install and simple to use, no need to install any driver. Powered by USB cable. Can be used for PS3, , TV, , Blu-ray player, HD DVD, home theater, AV amplifier, etc. [Durable Quality] Heavy duty aluminum alloy casing protects the inside and keeps the device cool by helping with rapid heat absorption and dissipation. Material: Aluminum alloy Color: Black Package Contents: 1 * Digital to Analog Audio Converter 1 * Optical Cable 1 * USB Power Cable The above package contents only, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.