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

These things are tiny but they work great. They only issue is they are pretty loud. They move a lot of air for there size. I would buy them again.

Used these for a custom install of an outdoor amp. Worked perfectly by plugging them into the usb port on the amp.

Very convenient and small product. Comes with a convenient, attached usb connector which makes connectivity a breeze and is small enough to fit into very tight spaces and with enough of an airflow to cool compact electronics boxes. Little or no noise from the fan and no detected interference with audio components.

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.

I used these for air circulation in a tiny terrarium, just hanging in open air. They were exposed to high humidity, but no liquid water. They worked great initially, but both developed a loud vibration after 4-5 weeks of continuous use. No amount of reorienting would quiet them, so it was something internal. I have used larger fans in similar situations with no problems whatsoever, so this appears to be a design or material issue.While they did work well initially, I cannot recommend these with <1000 hour lifespan.

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.

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.

If you're traveling with writing gear and have wet boots these are the things to drop in them overnight on your USB charger. They dry boots out exceptionally well.