For Raspberry Pi 4b 3b 3b+ with Cooling Fan Function Power Button

Using a 40mm cooling fan, you can control the fan module, enabling you to perform other functions, such as restarting and adjusting the fan speed of the motherboard. You can even program while the fan adjusts the speed to control the moduleThe button with fan control switch can be used to turn on and off during use, safely turn off and turn on againCompatible with Raspberry Pi 4B/3B+/3B programmable, speed control, with power switchYou can change the fan speed according to the CPU temperature.Provide enough space to use the heat sink on the Raspberry Pi board chip.Product Name:Cooling fanType: Temperature Controlled FanModel Number: for Argon Fan HAcolour:BlackMaterial:plasticsize:65 x 57mmPackage Contents:1 x Temperature Controlled FanOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.