Dedicated DC 5V Cooling Fan Compatible with NVIDIA Jetson Nano Developer Kit and B01 Version PWM Speed Adjustment Strong Cooling Air Fan 40mm×40mm×20mm with 4PIN Reverse-Proof Connector

When I tried to screw it, I found the length of screw is too short. As soon as I flip over the fan, the screw can be exactly fitted to the fan and security to heat sink.

awesome!!

This is a PWM controlled fan, which means you have to actually turn it on. There might be some temperature controlled app out there, but if you just want to turn it on put this in your terminal " sudo sh -c ‘echo 255 > /sys/devices/pwm-fan/target_pwm’ " To stop it just change the 255 to zero, or to slow it down put some value in between the two (its and 8 bit number, so any number between 0 and 255 will operate at a different speed).

Fan is probably fine, but at this price I expect all the bits to be suitable for purpose. Was disappointed that screws are too short.

Bought for my small, older, Jetson Nano. Works great.