240MM USB FAN

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.

Amazing! Very amazing performance and good airflow, I sort of left it on all night for over 12 hours and it still works fine!

Works well and looks like it is built well but the fans are noisy. Thankfully my WD Black 8tb external is only on when I backup files. I would not use it for always on drives as it is noisy. But it does work, in the lowest speed it drops temp from 55-60 C to 35-40 C.

These are really nicely built cooling fans and at a very good price point. They put out a lot of air. They are very noisy even at slow speed. It would be better if there was a super quiet speed setting on the remote. I use this under my Large Router on 24 hours a day hosting many connections, and it is a little loud. The fan I replaced this with was (almost silent), at high speed this fan is really loud. However, it is a well made product that will do an excellent job cooling components.

Works well with my computer

As far as the fans go, they are pretty standard 120mm fans, and function as intended. My concern/issue with the product that brought it to 3 stars was the extention cable that adjusts the fan speed. It brings the voltage to levels that the fans cannot accommodate. When on the lowest setting it's especially bad, as it sounds like the bearings are going to rattle out of the fans. Every setting makes the fan much louder than without the extention cable. My advice is don't use that cable and you have a completely fine product.

I bought a small SSD-based NAS during Prime Days. It's great, but runs a little hot, so I decided to sit it on top of an external fan. I chose this one. I tested it when it arrived (before putting the NAS on top of it). The good news: it moves a LOT of air. This, by itself, makes it a little noisy at the highest speed - quite a loud hum, but that's OK, because you can't expect near-silence when it's blowing a gale. So, I have no issue with that. The bad news: Next, I tried the lowest speed. It still moved a decent amount of air; less than at high speed, obviously, but enough for my purposes. But it was very noisy. This time, it wasn't a hum - it was a very audible rattle. I took a short video (be sure to turn on your volume). Back to Amazon it goes. I've replaced it with a single 120mm fan which, at low speed, is near-silent.

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 cool Examples: 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 lol These 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!

Very nice cooling fan it has 3 speed low, mid & high + ON/OFF button as described. The cooling fan is working and high quality product. I will buy it again. I recommend to buy this item.

Exelente para aparatos como consolas o en mi caso compre 3 para mantener frio mi receptor, pues a pesar de tener 4 en el anterior se quemo, al parecer por defecto de fábrica, lo recomiendo y mas si le pones un apagador inteligente

These little fans are well worth the money. Great air circulation, quiet, and a quick fix! Worth it!

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I got this running under the xboxone x. keep it cool under load.