Dual 80mm USB Speed Control Fan, 5V Portable Cooling Fan for Flat-Screen TV Receiver Router DVR PlayStation Xbox Computer Cabinet Cooler

I have an Asus Wi-Fi 6 RT-AX88U router that works great, except when it doesn't. After trying many things, I decided that the periodic rebooting might be caused by operating temperatures. I changed the factory firmware for the AsusWRT Merlin so that I could expose the operating temperatures. On the surface, the temperatures didn't "seem" too high. The CPU temperature was running in the 60's Celsius range for temperatures, and the 2.4 and 5.0 Ghz bands were running in the 40's and 50's respectively. Doing some research, I read others having stability issues clear up by introducing a dedicated cooling fan.I purchased this product and immediately noticed a reduction in overall operating temperatures for the device and over the course of the next few weeks, the stability of the unit improved drastically. As of this review, the current temperature readings are:Legend: 2.4 GHz - 5 GHz - CPUCurrent Temperatures: 37 °C - 43 °C - 50 °CThe CPU temperature is running at least 12 degrees cooler than before. I had observed previous peak CPU temperature as high as 67 °C. Now, it never breaks out of the 50s. The Wi-Fi temperatures remain equally cooler than before.I am running this unit on the medium speed setting, and I cannot hear it in the room running. When at high speed, I could hear it a little bit. For my installation, I have one fan running on the top of the router pulling air through, and the second fan underneath pushing air into the unit.In short, I strongly recommend this product if you have a need to add, or supplement cooling, to reduce operating temperatures. If it is for your router, networking gear, or an entertainment enclosure, this device will fit the bill as a quiet and effective solution. I have the fans powered by a dedicated USB power source, rather than being plugged into the router itself.

I used these fans for my greenhouse cabinet. Functional and works like I hoped! I bought them again. Perfect size for small plant areas, easy to place, and quiet noise.

This is by far the best fan I bought. It’s whisper quiet even on medium setting. What’s great about it is that it stays on even after power is interrupted without need to manually turn it on again. Highly recommend.

I bought this to help cool down a Onkyo receiver that would run very hot during normal use. I am happy to report that even using these fans on the medium setting, the receiver is staying nice and cool. Noise level is very low, even on "high". The USB power cord makes it very easy to use over a wide range of electronics. A very simple and cost effective solution. Two thumbs up!

Purchased these to use as extra external fans for my ps5, works great and the overall temp was greatly reduced.

These work great for my Ikea cabinet plants!

They fans work great for what i got them for.To cool my mini pc an onexgpu ,they keep them cool an on medium an low noise

Had to used this on a small computer that was in a tight spot with little air flow. But with these fan it keeps it cool and they are quite.