ELUTENG Dual AC USB Computer Fan 140mm USB Fans for Cooling 3 Speed Control

I use these to sit on top of a CalDigit TS3, which can get quite hot during SD card operations. This unit pulls the heat away very nicely. Fan speed is controllable via a corded switch. I am not worried about noise/quiet so much as I only use when necessary. I would have gone for the 80mm fans If I would have sensed how small these are. (I estimate these to be half the size of a deck of cards). BUT these are quite effective for their small size. Not the most aesthetically pleasing from a "clean desktop" perspective with the cords and such, but tolerable for my setup.

As for the size, it fits my laptop perfectly, and the pads keep it from sliding around which was a concern at first, but it's definitely not going anywhere! The fans themselves run off of a USB cable, with a slider switch from off>low>medium>high and barely make any noise at all. In fact, my own laptop's fans are louder. These things are BEEFY by the way, i use a pretty low-quality, unmaintained ROG Asus gaming laptop with a 1060 that usually heats to 91C. This thing bumps it down, at 70%-90% load, straight to between 68C and 87C. That's a pretty big improvement, if you ask me. Also the plug being USB is pretty useful. I put it under my laptop but honestly this thing looks pretty versatile, you could probably use it for other stuff too if you want. Very good cooling fans, would definitely recommend if your laptop overheats and slows down.

I only just took this out of the packaging and put it directly into use as cooling fans for our home router. I read all the reviews about these being noisy, and perhaps there were some that fit that description. However, the ones I got were super quiet! Seems to be a great value for the money. It moves heat away from my router and the fit was perfect. The three position speed switch works fine and I run the fan on high constantly. I'll update if the durability isn't good. I expect at least a year or more of service.

I bought this to cool a thunderbolt dock and it works extremely well for that on low speed. The only con is that it is louder than expected, which would be fine if the dock was tucked under the desk instead of onto of it. On low speed it is about as loud as a fridge compressor and is louder than a very quiet dishwasher.

Works well & quite.

These are fantastic fans for what I used them for! My Xbox was overheating. I added more thermal paste to the processor which didn’t help. My case wasn’t too dusty and my fan seemed to spin like it should. I was out of options until I bought these fans. I mounted them to my Xbox to help push out the hot air and my Xbox hasn’t overheated since.

This works great and I like the speed control so I can reduce when desired. Not too noisy but can be heard if on full.

Perfect for keeping all my HDDs cool. My case is full of components so airflow isn't the best but after I fashioned these fans in front of the case the HDDs stay a chilly 30C. Even on high it's quiet. Would buy again

Use this to cool down my AVR and is work as advertised. There are 3 speeds settings and so far I use the lowest speed and it is still able to keep my AVR cool down after hours of use. Would recommend it to others.

Oh it's bigger then I expected wow it brought my drive disk temp down by 10° c so u can't complain just just on default speed. I can't complain Makes no sound no vibrations and a constant speed I am using its own USB dock and not a laptop or control bored USB. I haven't tested it's threw a ps4 port ps5 ECT..

The fans move a good amount of air for their size, however I dont know if I got a faulty set of fans but they make a grinding noise that is very noticable at the low or medium setting. The mode switch itself gets unusually warm when on the high setting, but thats negligable compared to the grinding noise. I originally bought these to cool my 5G Hotspot and laptop charger, hoping that a dual fan setup would be quiet enough on the low setting to not notice a few feet away. The grinding noise is audible unless in the high setting.

I bought this to stick behind a ps5 because it sits in a fairly narrow shelf. It runs off the rear USB port. Because it's a 5v fan it is pretty low rpm but it still gets the job done and isn't obnoxious and loud.

Very good quality. Serves the purpose of cooling our wifi modem very nicely.