raspberry pi 4 fan, iuniker raspberry pi cooling fan 30x30x7mm brushless cpu cooling fan for raspberry pi 4 model b, 3 b+, pi 3, pi 2, pi 1 b+, retroflag nespi case(2-pack) iuniker <b>suitable for raspberry pi b / raspberry pi b+ / raspberry pi a+ / raspberry pi 2 and pi 3 model b / raspberry pi 3 b+</b><br> <br> bearing type: sleeve <br> size (l x w x h): 3 x 3 x 0.7 cm <br> connector: 2 pin <br> rated voltage: dc 3.0-5.8v<br> current: 0.1a <br> speed: 6000rpm±10%<br> airflow: 5m3/h<br> noise level: 18dba±10%<br> wire length: 60 mm<br> color: black<br> <br> <b>package includes:</b><br> 2x iuniker cooling fan<br>2x screw sets