New, Unused Instant purchase OK [Digital to Analog Converter] This digital-to-analog converter converts digital audio signals from SPDIF to analog RCA and 3.5mm audio. It converts digital signals to analog signals by transmitting audio signals from the source device from the INPUT side's Coaxial/Optical terminals to the OUTPUT side's AUX/3.5mm (L/R) stereo terminals. [High-Quality Sampling] Enjoy high-quality audio with this converter's 192kHz sampling rate and 24-bit S/PDIF incoming bitstream. This product can convert digital signals (Optical & Coaxial) to analog signals (headphone jack & 2RCA), and the digital-to-analog audio converter uses the 24bit S/PDIF standard, which suppresses noise and transmits clear sound quality. [High Production Process] Aluminum alloy shell, lightweight, durable, and heat-resistant. Gold-plated terminals for more stable signal transmission. A high-performance DA conversion chipset is built-in for stable signal conversion. Plug-and-play design, no drivers required. (Note: There is no volume up function) [Versatility] Applicable to devices such as HD TVs, satellite receivers, CD/HD DVD/BlueRay players, game consoles, PS3, PS4, Xbox, and Apple TV. Also supports optical/coaxial output from TVs, game consoles, Blu-ray players, etc. Note: This product does not support 5.1ch (e.g., DTS AC3). Please change the audio output format to PCM/LPCM before use. [Small Size, Space-Saving] Compact size, easy connection with no settings required. Simple design for ease of use. Package contents: 1x DAC audio converter, 1x coaxial cable, 1x optical cable, 1x USB power cable, 1x Japanese instruction manual.