GDSTIME Quiet 120mm USB Blower Fan with 3 Speed Control, 5V Squirrel Cage Blowers, DC Brushless Centrifugal Fans for Receiver DVR Xbox Modem AV Cabinet Cooling

This was the best idea I've had in a while! My computer desk is in a corner, and the tower against the wall, so whenever I would game it slowly builds a pocket of heat in that corner. I took out the exhaust fan and screwed this in its place, but on the outside, facing towards where my feet are under the desk. The heat is gone, and there's even a nice breeze if I put my feet up a bit. Massive difference! I don't even use the power adapter thing it came with, maybe I'll find a use for that later. Extremely happy with this setup!

I have my fan mounted to a 2” barrel bung, to vent the humidity (digital controller) when it gets too high. Works amazingly well for the task. 5v usb plug. Ultra silent.

I happen to love centrifugal cooling fans because they move air in a very controlled manner and do so very quietly. I use these on various applications within my networking and equipment racks to keep things from overheating and they just hum along very smoothly and quietly even at full blast. Only caveat is you get lower CFM for the size of the fan compared to a box fan but because the air is directed in such a concentrated way it solves thermal issues from specific processors far better than a standard box fan and without the crazy noise and vibration.

I put this in my travel kit to create some air circulation in hotel rooms. It's compact and the "blower" nature is perfect for creating a little bit of circulation. Putting some hot glue on the wires to keep them secure / safe, especially if it will be moved around, is a good idea. And in my use case, I used 1/8" neoprene to line the back to keep it from moving and making noise during use. I'm not using the speed controller. Even on high, the sound is fine. In fact, in my use case, having some "white noise" is a benefit to mask other hotel guests. BT recommended

I used this blower fan for a BBQ project. It's very quiet with a good amount of airflow. One minor problem that seems to be common with small DC fans: The leads are delicate and not dressed very well - a heat shrink jacket would make them more secure. And a slightly bigger problem that lost it a star: On the lowest speed of the 3 speed choices, in certain orientations the fan motor wouldn't start running. The lowest speed needs to be a little faster to be usable.