Black Box Data Tap， DB9， (3) DB9 Connectors， MFF<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Tap into and monitor active lines with a data scope. </span></li><li><span class="a-list-item"> Monitor RS-232， RS-422， or 802.5 communication. </span></li><li><span class="a-list-item"> Three DB9 connectors: (2) data connectors (MF) and (1) tap connector (F). </span></li><li><span class="a-list-item"> All nine pins are wired straight through. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41TgRTMC%2B3L.jpg" noproxy>