<b>IMPORTANT NOTE: Please connect the CPU Air Cooler with 12V 4PIN on the motherboard. You may short circuit your motherboard if you connect to other ports</b><br/><br/><b>Features:</b><br/>Overall Dimension: 100x 100 x 72mm  ><br/>Fan Dimension: 100x 100 x 25mm  <br/>Operating Voltage: 12V<br/>Rated Power: 4.2W <br/>Rated Voltage: DC 12V <br/>Rated Current: 0.35A <br/>Airflow: 29.3cfm <br/>Static Pressure: 3.61mm H2O<br/>Fan Speed: 800~2500(+/-10%) RPM <br/>Sound Level; 29.6 dBA(max) <br/>Connector: 4pin connector<br/> Bearing Type: Hydraulic Bearing <br/>Lifetime: 20000Hrs<br/><br/><b>Socket: Intel: LGA 1151/1156</b> <br/><br/> <b>Guarantee:</b><br/>One year warranty. If the item you received is defective in any way or you purchased the wrong item or any other questions, please contact us via Amazon message system. We will reply you in 24 hours and try our best to solve your problems.