Wathai High Airflow Router Cooling Fan for Computer Cooler TV Small Box DC 5V USB Power 120mm 240mm Fan with Multi Speed Controller

This works amazingly well. Quiet, comes with speed adjustment cable (Not Using) Fair Price and most importantly cools my CyberGeek Micro Computer to almost shutdown temps. System was glitchy and hanging up while preforming simple tasks (CPU Overheatig). Now works like a charm.

One thing to take note of. When ordered the description calls out 5v usb power. When I got this the included user manual calls for a 12v 2amp power supply. Most 12v power supplies are wall chargers that use a barrel plug that needs to be removed. The fan side usb connection will need to be removed as well Another option is a usp swap for the barrel plug. Don't know why this change happened. There's no mention of the 12v 2A power requirement untill you get the user manual. Update, ordered a fan from a different company. It included a 5v usb supply with included fan speed control. So much better than this fan.Update, decided to try a normal 5v charger with this fan and it's working well. Still don't know why the manual called for a 12v power supply. I have it running to cool my modem. Will update if anything goes wrong. For now it's working well and perty quiet on the medium setting.Last update. It's been some time now and things are good. The wall chargers is still cool to the touch and the fans are still running. The modem is much cooler than without the fans. Normally warm but pertty cool now.Good quality great price, I can definitely recommend it after you get past the power supply misunderstanding.

I have a KVM switch that runs hot. Bought this to keep it cool and it works as expected. Nothing special, but does the job and keeps the KVM switch significantly cooler.

Purchased this to cool a router in our family room. Upon installing at low power, the fans make noise. Quoted from the description "At the lowest speed setting, the fan blades will not rotate smoothly due to insufficient starting voltage, resulting in a noise that is normal" You will get a clicking noise. At high power the noise of the fans is smooth but loud. If you are installing in a non living space, this will not be an issue. If not, you will have quite a bit of noise. I unfortunately did not read the description, so I had to replace the fans with something different.

This fan works better than expected. Its super quiet and the usb runs perfectly. I set this up to keep my home router cool as it was over heating. I haven't had any issues since installing this fan. I would highly recommend this product.

I don't use the power controller, i just plug it straight into the mini pc and it will run whenever the pc is turned on.When using it as is, very quiet, effective cooling so the mini pc noticeably reduces the stuttering rate when streaming 4k movies.Very light vibrations but i don't think that will affect the pc at all when placing directly on top of it.The wiring is very thin and susceptible to damage if you yoink it unintentionally (see second pic) recommend to use hot glue to keep it in place.

Bought this for my switch2 just to keep the console cooler when docked. It did exactly that. Fans work great despite a little buzzing noise however these fans are very cheap so don’t expect a lot. At full blast they are pretty powerful however even on the lowest setting I found it enough to keep temps down. Perfect for what I needed

I didn't want to do the work. And these folks have. I absolutely LOVE IT!Pros: It works like a charm keeping routers, laptops, YOU coolExamples: Wifi link in the garage gets super hot in the summer time. But this did the trick so my speeds are back up and connections are not dropping like they used to! I also use it on a verizon 5G wifi cell modem. It's like it was made for it. I also use it under my high performance laptop to keep it cool and this does it so so so well. No laptop fans buzzing all the time. Instead with two of these fans running in my office I barely notice them. The noise at best is white noise, but when you're working or on a call I would challenge you to hear them going.Cons: I am not a fan of the button control. I know why it was done this way, but I'm not a fan of it. When the power goes off, this won't turn back on. So that is a major bummer. I get away with it using UPS units, but a rocker switch would have made more sense. Instead of three speeds there's at least two and when the power blinks it comes back on when the power comes back on.Honestly I could change it myself but I'm so lazy lolThese folks have done a fantastic job with this and frankly I'm sucker for folks willing to put in a little time to innovate something that patches a major hole in router and modem cooling.Thanks for making these, love it!