4pcs raspberry pi 4 fan raspberry pi cooling fan brushless cpu quiet led cooling fan dc5v 30mm 30mm fan silent cooler radiator for raspberry pi 4 model b, raspberry pi 3b+ 3b 2b+ makerfocus <b>product description</b>:<br/>this is a 4010 blue led fan for the raspberry pi, which is very cool. when the fan turns up, you will see blue light.<br/><br/><b>parameter</b><br/>material: plastic<br/>color: tansparent<br/>led color light: blue<br/>rated voltage: dc 5v<br/>working voltage: 3.0-5.8v<br/>current: 0.2a<br/>air volume: 5m 3 / h<br/>speed: 5000rpm±15%<br/>noise: 18 db<br/>fan size: 30 * 30 * 7.5 mm<br/><br/><b>features:</b><br/>suitable for raspberry pi 4 model b / 3b+ / 3b/ 2b+ / 2b<br/>low consumption and low noise<br/>high quality, low consumption and low noise<br/><br/><b>how to connect?</b><br/>the fan power is provided by gpio. <br/>connect the red cable to the 5v pin and connect the black cable to the gnd pin.<br/><br/><b>package including:</b><br/>4 * led fan<br/>16 * screws<br/>16 * screws nuts