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

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 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.

Why did you pick this product vs others?:Appeared to meet our need based upon specs and reviews.

I bought these to keep my Wyze Pro Ethernet Router/Mesh cool, since their fans alone were not very effective, and while it does that very well, the hum they produce even on lower settings is constant, and I can hear it when I'm alone in the quiet room. It's fairly minor, but I wish it was near silent at the lower speeds.

I have an Apollo II Bitcoin miner on top of this set of fans to keep air flowing. I did have to fashion two strips of wood to better center the weight of the miner and prevent sagging. I love the adjustable speed controller and the quiet of all four fans working as one.

Also like that they provided a long cord and speed controls!

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.

Wish came in whitePc hooked usb and hit switch for more cooling used air meter see how config fans