Rpi shop RPISHOP DC 5V 0.2A Cooling Fan with Screws for Raspberry Pi 40mm x 40 mm

Really fast can be used in normal pc as well to exhaust heat. Can be control through PWM motherboard controler and on commender. Works silently as well as work on full speed. Really helped me a lot to cool down my 4 ram stick of 128gb.

It very tiny as described, serves the purpose, works like charm. Only problem is with its sound.

Need to interchange 5v anf GND pins of connector, this is mentioned by earlier buyer's as well.

This fan has a good RPM but the tiny size restrics its air flow. Its a good quality fan for Raspberry pi and does the job well. But don't expect to over clock your pi on this fan.

I am using a laptop cooling fan right now. This is the third fan I bought for this. None of them was good

Perfect for raspberry pi b 3+.But my case didn't had the right place to fit since i had bought the whole kit. Had to fit the fan using some left over plastic.Anyway, fan is good n doesn't make any noise.And 3 stars for late delivery.

Amazing product. Works as expected

The media could not be loaded. The Raspberry Pi 4 runs hot. Even at idle, the CPU temperature quickly touches 60 - 65°C. With light loads, the temperature rises to 75°C and thermal throttling kicks in, dramatically reducing performance. To effectively cool the board, you need passive heat-sinks and active fans.I stuck this fan to the Official Raspberry Pi case using double-sided tape and it seemed to stick well enough. The fan is not irritatingly noisy, but can be clearly heard even through a sealed case. The combination of fan & heat-sink was effective in maintaining the temperature of the RPi4 board to less than 80°C even during extended stress testing. Thermal throttling did kick in, but was quickly lifted due to the cooling. In effect, the board worked optimally for longer.The fan does not feature a Air-Direction sticker or indicator. Also, the power connector has exposed pins, which can possibly cause a short-circuit and burn the RPi4 board. I figured out the fan direction and mounted it so that the fan was blowing air directly on the heat-sink. I also used a bit of paper to prevent the exposed power connector from touch the other pins.Update 13 Jan 2020: Within one month, the fan has failed and makes a annoying high-pitched sound during operation. Due to inefficient operation, even the RPi4 is getting overheated and slowing down. I applied a drop of oil to the shaft, which reduced the noise, but did not significantly improve the RPM. Not recommended.Let me know if this review helped you.