Rapco Horizon DMX-2PR-500-Feet 2 Pair DMX Cable on Spool<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> 4) conductor twisted pair construction </span></li><li><span class="a-list-item"> 100% shield coverage </span></li><li><span class="a-list-item"> 110 ohm impedance meets DMX specifications </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/21OGMp4iH%2BL.jpg" noproxy>