DEVMO 2pcs USB 5V DC Fan 2510 Small 2 pin Cooling Cooler Computer 25mm X 10mm (25x25x10)

I bought this for a trip on an airplane and for my steam deck. On the steam deck I have a multiple port attachment and I was able to attach this using a standard USB. I had to cut the wire to keep it just a few inches long and using a sink shrink wrap worked well. I also use double sided tape to attach this to the steam deck, air vent entrance. This model of fan has very little CFM and it’s not noisy. The purpose of getting one that has very little CFM is to push air in while the steam deck has a built-in fan to push air out. It seems to work well on my trip on an airline without causing disturbance. I’m sure this will drain the battery quicker, but I was plugged in to a power source at all time. So yes, I did enjoy this.. quick note, I put a silicone protective case to also hold it in place and conceal it a little out-of-the-way.

Great small simple fans that work and run a lomg time. I use the for our candle wax melts to help blow the smells around and it works very well. I'd buy more if I need to.

I purchased these to place on a M.2 drive but are too small. They move air well but would need to be a very small area. The 40mm size works well on the M.2 and enclosure.

At first I thought "this won't work, the airflow doesn't seem very strong". I am using it to cool a Raspberry Pi 5 that runs part of my ham radio system. Temperatures for the CPU were typically running about 158-164 degrees F. After I put one of these tiny fans on the outside of the case, aimed so the airflow would blow into the case and across the CPU, the temperature dropped down to 124-126 degrees F. That is an average temperature drop of 38 degrees F. This is outstanding and I'm sure it will result in a longer life for that Raspberry Pi 5, especially since heat is the bane of electronics. I call this cheap insurance. So quiet you can't even hear the fan. I purchased the 2 pack and I now have a spare.

These fans move a lot more air than what I expected.

i had a fan going out on my 12v to 120v inverter, it measured about 1 in sq and saw these in amazon. Got them overnight for a cheap price and I removed the bad fan and snapped in this new one. I reattached the wires and insulated them of course and powered it up. Super quiet and works like a pro. Very glad i could rescue my inverter so easily. I have a spare now to fix any of my 2 other 200w inverters I own.

They're small, quiet, and barely take up any space or power... but man do they suck at moving air

Just enough airflow to cool my Schiit Reker amplifier. 20 degree drop. Started out almost silent but increased vibration after a few weeks. I eventually tossed them into the bin for some future temporary use. Not sure there is any better ones out there though.