XSPC 140mm Xinruilian Fan， 1350 RPM， 4-pack<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"> 1350RPM </span></li><li><span class="a-list-item"> Low Noise (~29dbA) </span></li><li><span class="a-list-item"> Airflow 73.92 CFM </span></li><li><span class="a-list-item"> Static Air Pressure 1.23 mmAq </span></li><li><span class="a-list-item"> Operating Voltage Range 5.5-13.8V </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/610rxlieJUL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/511-nVpP0tL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41-ia%2BxzOqL.jpg" noproxy>