DIGITAL TO ANALOG: The DAC audio converter is designed to convert coaxial or toslink digital PCM audio signals to analog L/R RCA and 3.5mm jack audio simultaneously. (Analog digital is not supported) [Excellent Performance]The sound of the digital to analog audio adapter is synchronized when connected, without delay. Durable and stable transmission means you don't have to worry about poor sound quality after long-term use. Broad compatibility: The signal converter supports 32Hz, 44.1KHz, 48KHz, 96KHz, 192KHz and 24-bit SPDIF input bitstream sampling rates in the left and right channels. Can be used for PS3, , , Blu-ray players, HD DVD, home theater systems, AV amplifiers, etc. Multipoint connection: The optical fiber to RCA adapter supports uncompressed 2.1-channel PCM or LPCM digital audio signal output, and does not support 5.1-channel sound. Thoughtful service: The package includes DAC converter*1, Toslink cable (optical cable)*1, USB power cord*1, and user manual*1. Dimension: 60 x 55 x 20 mm Consumption: 0.5W (Max) Converter Unit: FCC, , UL Power Supply: UL, , FCC Powered by 5.5mm 5V/1A Power Supply Note: Do Not Use Other Plugs, It Can Only Use 5V 1A Plug The adapter is incompatible with 5.1 Channel Signal such as AC3, please set the audio output to PCM or LPCM. This Converter can't adjust volume, please adjust the volume by your input device or output device. If you have some problems connecting your TV and speakers with this product, please set the TV audio output to PCM/LPCM format and then try again. Colour:black Material:Metal Package Contents: 1 set x rca to optical audio converter Only the above package content, 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 +/- 1-3cm.