SMSL Q5 Pro Digital Amplifier 2 - 50W USB/Coaxial/Optical with Remote Control - Black<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Pure digital amplification technology including audio mode optical fiber coaxial computer USB analog input </span></li><li><span class="a-list-item"> The Easy Start patented technology allows precise control of the power supply circuit to improve the sound system reliability </span></li><li><span class="a-list-item"> Meet high-definition Blu-ray and HD DVD format for demanding audio interface standard with sampling rate 44.1-192K own testing </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31-tluD1PqL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41nB2kkDZjL.jpg" noproxy>