<b>Descriptions:</b><br> This is 4010 type fan for Raspberry Pi or other development board. <br>When the fan turns up, you will see 7 different color LEDs that change automatically, making your fan more beautiful and personalized. <br>It’s high quality and low consumption and low noise. <br>Used for used for Raspberry Pi 4,Pi 3, Pi 2, Pi Model B+. <br>The DC 5V cooling fan run smoothly and quietly <br> It’s good for heat dissipation of Raspberry Pi. <br> It can be assembled easily by screws. <br><br> <br> <b> Funciones </b> <br> <br> Velocidad （a 25 ℃, para registrar la velocidad después de que el ventilador funcione normalmente, esta vez alrededor de 3 ~ 5 minutos): 4500 +/- 10% RPM <br> Flujo de aire (a presión estática cero): 4.8 CFM <br> Presión de aire (con flujo de aire cero): 2,66 mmH2O <br> Ruido acústico (AVG.): 22,63 dB (A) <br> Tipo de aislamiento: CLASE A (105 °) <br> <br> <b>Package Includes:</b><br>2x Cooling Fan<br>2x Screw Set<br><br><b>NOTE: </b><br>Raspberry Pi Not Included