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 - CPU Current Temperatures: 37 °C - 43 °C - 50 °C The 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.

These are multi purpose USB fans withe three speed settings. While they are designed more for cooling a cabinet that has music/video players inside, they also function as added cooling for your computer tower. Nowadays computers can get pretty toasty with the high wattage GPUs, so I decided to slide these fans into my case to help get even more air flow through the case. I put them in a position to pull more cool air inside and if I'm playing a fairly intensive game these little fans have helped drop the temps 10-15c at peak hot spot temps. The fans have a single controller and single USB power plug, so it's easy to attach it to your system. With a simple flick of my finger I can turn the fans on to low/medium/high, I typically keep in on medium but even on high they are not that audible when inside the case. They also have rubber feet so they stay in place nicely. It's far cheaper and easier that installing additional fans in a case, plus these having the added bonus of being able to be used elsewhere if need be. So far I'm happy with the purchase and hopefully they last a while. I'll update this review if I run into any problems down the line.

Reliable and functional

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!

Quiet Cooling Solution for Electronics That Run Warm I’ve been using this dual 80mm USB speed control fan with a couple of my electronics setups, and it’s been a surprisingly effective little upgrade. The fans are compact, plug right into a USB port for power, and give you adjustable speed control—so you can run them quietly in the background or turn them up when something is really running hot. I’ve used them behind a flat-screen TV and also inside a media cabinet where my router and DVR live, and in both cases, the airflow noticeably reduced the heat buildup. What I like is how simple the setup is—no complicated wiring, just USB power. The fans run quietly at low speed and aren’t distracting in a living room setup. When I set them higher, they push a good amount of air for their size. The build feels solid, and the dual fan arrangement covers a wider area compared to a single small fan. One thing to keep in mind is that these are not whisper silent at maximum speed—you’ll hear the airflow if you’re sitting right next to them. Also, the airflow is directional, so you’ll want to think about where to place them for best results. They’re not going to replace a big cooling fan for a gaming PC, but for media electronics, they’re very effective. Bottom line: A well-designed, easy-to-use cooling solution that helps protect electronics from overheating. Great for keeping media cabinets, routers, and receivers running cooler without a lot of noise or hassle.

Keeps stereo cool ,no worries using it watching movies all day!

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.