StarTech.com 1U Vertical Server Rack Cable Management D-Ring Hook - 1.8x3.9in (4.5x10cm) Rack Cable Organizer - Rackmount Cable Ring Components Other， Black (CMHOOK1UN)<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"> Color: Black </span></li><li><span class="a-list-item"> Height (Rack Units): 1U </span></li><li><span class="a-list-item"> Product Material: Steel </span></li><li><span class="a-list-item"> Route cables neatly through your rack with an easy-to-install cable management ring </span></li><li><span class="a-list-item"> Increase the longevity of your server and networking equipment interfaces by providing cable strain relief </span></li><li><span class="a-list-item"> 1.8 x 3.9in (4.5 x 10cm) Cable management D-Ring </span></li><li><span class="a-list-item"> 1U Bracket can be mounted to any standard rack post </span></li></ul><!--   Loading EDP related metadata  --><div aria-live="polite" class="a-row a-expander-container a-expander-inline-container"><div aria-expanded="false" class="a-expander-content a-expander-extend-content" style="display: none;"><ul class="a-unordered-list a-vertical a-spacing-none"><li><span class="a-list-item">Sturdy steel construction</span></li><li><span class="a-list-item">Flexible opening</span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41nqSqeAVqL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31l02ejZGRL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31ykVVEmxLL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41SN3atrrSL.jpg" noproxy></div></div>