Cooler for Raspberry Pi 4B: Nominal Voltage: DC 5V Current: 0.2A Size: 65*56*9mm Compatible with Raspberry Pi 4B/3B+/3B/3A+/2B+/2B/B Heat Sink for Raspberry Pi 4: Size: 5mm*14mm*14mm/5mm*14mm*14mm/5mm*9mm*9mm Material: Aluminum Function: The contours of these heat sinks are perfectly adapted to the Raspberry Pi 4B standard Cooler Performance: Compatible with all versions of Raspberry Pi footnotes, Raspberry Pi pins can be used Clear pin mark, GPIO function fully displayed. All GPIO pins are pulled out, so when the Raspberry Pi is being cooled, its development function will not be affected The cooling fan adopts active cooling mode, the heat can be discharged in time. Besides, it included double fan, the effect of cooling and ventilation is better LED and fan both have switch, you can control the LED and fan individually, will not bring the dazzling feeling when you use it in the night Heat Sink Function: These pure aluminum heat sinks include thermal tape that transfers heat efficiently to the heat sink, providing additional cooling for the IC The contours of these heat sinks are perfectly adapted to the Raspberry Pi 4B standard Package Content: 1 * Expansion Board with Double Fan for Raspberry pi 4 * Copper Column(column double pass M2.5*17mm) 3 * Heat Sink 9 * Screw( M2.5*5 countersunk screw) See more

Strong After-sales Service Team: We Have a Strong After-sales Service Team: As long as you have any questions about the product,we will resolve your issue immediately if received your email,your satisfactory purchase experience is our greatest hope.How to email us,Plz click MakerFocus and click Ask a question email us! Looking forward to your consultation!. 2 Independent Control Switches: LED and fan both have switch,you can control the LED and fan individually, it will not bring the dazzling feeling when you use it in the night. Perfect Cooling Performance: The cooling fan adopts active cooling mode, the heat can be discharged in time. Besides, it included dual fan, the effect of cooling and ventilation is better. Outstanding Design: Clear pin mark, GPIO function fully displayed. All GPIO pins are lead out, so when the Raspberry-Pi board is being cooled, its development function will not be affected. Wide Application: Compatible with all versions of Raspberry Pi footnotes, you can use the Raspberry Pi pin, the board is suitable for Raspberry Pi 4B/3B+/3B/3A+.