Fan suitable for Raspberry Pi 4 B, 3 B+ and 3 B This fan can be controlled by software so that it is only switched on or off automatically above a certain temperature. The switch can also be programmed so that you can use it either as an on/off switch or to switch between temperature-controlled and manual mode. Technical data - Operating voltage: 5 V DC - Fan speed: 4,200 rpm - Air flow rate: 0.05 m³/min - noise level: 18.6 dB - programmable RGB LED - programmable button - compatible with Raspberry Pi 4B, 3B+, 3B - dimensions fan 30 x 30 x 7 mm - total dimensions: 42 x 45 x 13 mm Supplied without M2.5 spacer bolts and without stacking header, see accessories. Note - no soldering required, just plug it on! - not compatible with Raspberry Pi 5 B