Thermalright TY-150 1100rpm 2 Ball Bearing 170x150mm PWM Fan<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"> PWM fan， provides simple and easy adjustment of fan speed with the latest ETC IC. </span></li><li><span class="a-list-item"> Seven Silent Torpedo Blades - “submerges”， gives most quiet and efficient airflow </span></li><li><span class="a-list-item"> Two Ball Bearing - to ensure consistent and stable rpm， prolonged lifetime of usage. </span></li><li><span class="a-list-item"> Aerodynamic body–Less friction around the edges and give more centered and concentrated airflow. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41PBrgyhMML.jpg" noproxy>