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

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 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 damage if you yoink it unintentionally (see second pic) recommend to use hot glue to keep it in place.

This fan has been sitting atop my Internet Hotspot device and it has been running 24-hours-per-day for a few weeks now. -- It never heats up ---It has never failed except in a power outage --I can not even hear it running, it is so quiet ---I have to put my hand above it to feel the air it expels when I want to make sure it is still running --- This is an amazingly high-quality item and it was very economical to purchase and it uses very little electric ---and it keeps my electronic device cool -- I am always going to have one of these on hand and, in fact, I have a spare in my desk drawer just in case ..... but I doubt I am ever going to have to use the spare. I love this little fan....dearly love it!

Overall, reasonable noise level and does exactly what it's supposed to. Plugged right into the WiFi router, popped it underneath, and I saw a major decrease in packet loss from overheating. Not bad!Unfortunately, I can only run it on high, as the low and medium settings have an uncomfortable pitch/tone to them. I'm oddly sensitive to select sounds, so I can only run this unit on high. However, that's not the fault of the unit. Simply something to be aware of if you're sound-sensitive like me.Overall, quality product.

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!

Plug & play, no hassle. Fan works great, is quiet, and is keeping the device at a much better operating temperature. I’m sure anyone who purchases this fan will be more than satisfied. Great product, and I plan to purchase a few more just because.

Excellent fans but they could be more powerful. However, they get the job done for a small crypto mining rig.

Solidly built fan. I’ve been using it for a few weeks to cool my Eero router that runs very hot. I have it on the high setting 24/7 and rarely notice it. Definitely keeps my router cooler.