Product Name:Digital to Analog Audio Converter Adapter<br> Product material:ABS&Metal<br> Product color: black<br> Product size: 6.5cmx4.1cmx2.5cm<br> Product weight:95g<br> Package Contents:<br> 1 x Digital to Analog Audio Converter Adapter<br> 1 x USB Power Cable<br> 1 x 0.5m fiber<br> 1x English manual<br> Features:<br> 1.This Digital to Analog Audio Converter is designed for either home or professional audio switching.<br> 2.This Converter has many features that enable it to perform in a superior manner.<br> 3.Converts Coaxial or Toslink digital audio signals to analog L/R audio<br> Supports sampling rate at 32, 44.1, 48 and 96 KHz.<br> 4.24-bit S/PDIF incoming bit stream on left and right channels<br> Provides electromagnetic-noise-free transmission.<br> Easy to install and simple to operate.<br> The Reason of cancel the external power adapter and use USB powered.<br> 5.Many devices (e.g. Computer TV DVD) USB ports output stable voltage and current, And filters some<br> Bad waves. So the DAC( Digital to Analog audio converter) will works better, And decode will more stable.<br> In addition ,Use USB output power that is more environmentally friendly