Features:This Digital to Analog Audio Converter is designed for either home or professional audio switching. It converts Coaxial or Toslink digital audio signals to analog L/R audio .This Converter has many features that enable it to perform in a superior manner. Among thoseConverts Coaxial or Toslink digital audio signals to analog L/R audioSupports sampling rate at 32, 44.1, 48 and 96 KHz.24-bit S/PDIF incoming bit stream on left and right channelsProvides electromagnetic-noise-free transmission.Easy to install and simple to operate.Note:1. The Reason of cancel the external power adapter and use USB powered.Many devices (e.g. Computer TV DVD) USB ports output stable voltage and current, And filters some bad waves. So the DAC( Digital to Analog audio converter) will works better, And decode will more stable.2. In addition ,Use USB output power that is more environmentally friendly, And reduce costs, And compatible with all country3. This item NOT convert Dolby. Specifications:Input Audio:  Coaxial or Toslink digital audioOutput Audio:  L/R audioInput audio connector:  Toslink、1XRCA(Coaxial)Output audio connector:  2XRCA（R/L）Sampling rate:  32, 44.1, 48 and 96 KHzOperating temperature:0~70°COperating humidity:10%~85%RH(no condensation)External power supply:5V DC/1APower consumption:0.5WDimension:  50 x 40 x 26 mmColor:BlackWeight:90 gPackage weight:100 gPackage Included:1 x Digital to Analog Audio Converter Adapter1 x USB Power Cable(58cm length)1 x 0.5m fiber Optical cable(96cm length)