ELUTENG Dual 40mm USB Fan with 3 Speeds Adjustable 5V PC Fan Max 5500RPM 40mm * 40mm * 25mm Mini Case Fan Quiet Computer Fan Compatible for PC, TV Box, Router, Xbox, PlayStation

Whisper quiet, and surprisingly good airflow for such small fans! I am using them on the low setting to cool a small audio amplifier. Works extremely well. The description doesn’t show it very well, but there is plenty of cable to work with.

They were good they function well just didn’t work out for what I was hoping for what I was using them for

So far so good! Using them to ventilate a tiny greenhouse and seem to work just fine.. quiet too!

Added these to my thermoelectric cigar humidor to circulate air. Seems good , will see if they hold up and for how long.

Have these tucked it behind my AV receiver. Helps keep it cool. The USB plugs into my TV so when I turn off the TV, the AV receiver and the fans shut off as well.

I was originally planning on using these to help ventilate my AMS unit, but the airflow is too low. I eventually installed these in my wife's shoe closet to ventilate a wooden box with expensive heels. Not a total loss at the end of the day.

I bought these for our gecko's small enclose to help regulate humidity. The 3-speed setting is helpful and it's near silent at all speeds. It's a pretty specific use case, but the size and quality are perfect for it.

Using this for a Vive Wireless Adapter to keep it cool. There's a thingiverse design for a similar dual-fan product which I haven't printed yet, but I'm excited to try it. The fans themselves work well. The noise level is a little higher pitch than I expected, though. I worry that this might be a sign of the fans being roughed up during shipping or something like that, but they work really well and are cheap, so I'll use them until they fail. Not much else can be said about this product. It's 2 fans with a long cable and a switch. It's easy to power and easy to find a use case for.

Small, but relatively quiet. Do the job, giving enough airflow for small heatsinks.

Low noise . 3 speeds that seem to actually be different. Seem well built and are fairly powerful.

I bought these fans to add airflow through my chameleon's mesh terrarium, they work well and are very quiet, I just wish they moved a little more air than they do. In any case, they definitely do the job I bought them for, so 4/5 from me!

Very convenient USB fans. I have them set up in a push-pull configuration in my little server shelf to keep things nice and cool. There is a slight rattle to one of the fans but I don't notice it over the sound of the rest of my devices.

音は静かだが風量はそこまで多くない。コードが短い(特にスイッチからファン本体までのコードが短い)ので取り回しが悪い。耐久性は分からないが、コードと本体の接続部分がやや不安な印象。