40mm USB Fan 2pcs, 5V Mini Cooling Brushless Fan with Speed Control

They work just as I need them to. Fairly quiet for what they are and they move a ton of air.

Good

I used these in my mini shoebox greenhouse. They work awesome and really keep the air circulating. Now this is based off my setup for what im doing so judge the air movement your looking for. These are small but also have 3 speed levels and when set on high they could probably left a small hobby drone.

Works perfectly helping cool those hot-running fanless UniFi Gen1 150w 8 and 16 port Poe switches. Mount the switch vertically and place these fans on the vents with a bit of tape. Internal temps go down from 70c to 50c reliably.

They work for cooling of a mini that sits in a warmer area for room conservation and security of the box. I gave them 4 stars for 2 reasons. 1st the red / black leads are a bit longer before being covered by the outer sheithing than I really feel is secure enough for fumblers like me to handle while exploring where or how I will mount them. ( A little hot glue) In the right place secured them better. 2nd I hardly ever give 5 until I get some real long term use out of a product. I believe these would even sell more and faster if the controller came with a modular for much shorter cables instead of having to roll them up in bundles.

Nice fit for my inovato computer. Cools the cpu well, with little background noise from the fan.

These fans stopped working after only the 5th use and the return window just ended 😩 I use these as cosplay fans in my mask. They have only been used for a total of 5 hours and they completely stopped working.

Buenos justo lo que necesito