AC Infinity MULTIFAN S4, Quiet 140mm USB Fan, UL-Certified for Receiver DVR PlayStation Xbox Computer Cabinet Cooling

I have tried many different brands, but this one is 5 stars. I bought 2 140mm size for my Tplink ge800 router because it gets hot most of the time and i wanted something to keep it cool, and yes they work very well. Very quite and barely any noise level at high speedGood quality and it cools! Other brands are loud and don’t cool. Highly recommended, yes you per extra few dollars but you get what you pay for

Bought theae for AV receiver. Two years later, I'm buying another for my router. Others still working brilliantly and the router is running so much faster now.Love these things. Quiet, cool, and reliable.

Im writing this review during a very HOT unusual few June weeks in Minnesota, its been over 90 for almost 2 weeks now, I have a full size 42U server rack for my home lab, it has a big hole on top that nobody's exhaust fans fit, 21 x 5.5, but the 140mm measurements of this fan is just big enough that I can sit about 4 of them on top of the racks hole. I work in Tech Recycling, so I see what happens to most tech equipment when its removed from service, its rare to see AC Infinity products, I rescued a old AC Infinity Controller they don't appear to sell anymore, but its similar to the one they sell now, and rescued a 2U Rackmount 4 fan with controller unit, I was amazed how quiet the rack mount fan unit was even after many years of use, the LCD controller is a bit hard to read, but other then that it works fine. So I needed some USB fans to plug into the other controller I rescued, I was concerned there was only 2 USB ports, which is the same as new model they currently sell, but when these fans arrived, I saw a lovely daisy chain USB connector, apparently you can have up to 4 of these on 1 of the USB controller ports so those 2 ports give you maybe 8 fans , I don't need that much, but its a nice feature, I plugged these in to the old controller set it on AUTO and away they go. The controller appears to have Low/Med/High setting but these fans also have a 4 way switch on the cord which seems to be 1 notch higher then whats available on the controller, I have them maxed, very light hum, not much more then my laptop fans on a hot day. Compared to others, I have rescued hardwired plug and run fans with no thermostat, that sound like a bunch of servers running, so these are by far the quietest ive heard (almost can't tell they are running), Now that I know they daisy chain, I bought 2 more, with 4 of these at about $15 each vs $300-400 exhaust fans that are usually 120mm, they sell for most racks this is a great deal and larger.Perfect product, not sure how strong they are? they are not as FAT/DEEP as some Ive seen at work, its very hot, my rack runs about 3-4 degrees hotter then the room its in, so even with the fans they are having a hard time cooling it down, but air circulation is always good. its hard to get cool when the room itself is hot upper 80s, and rack is maintaining lower 90s.Only thing I would add to this product,RGB colors would be nice for those of us that like adding colors to our loved computers, but probably wastes electricity and reduces power so maybe its better they don't have color lights. (only if it don't sacrifice cooling power)CLIPS, since Im buying 4 of these to fill that big 5.5 x21 inch hole in my rack that normally a bunch of wires would go through, but in my home lab all wires go down, Im using that hole as a exhaust for the heat to exit up to the ceiling, these cool rubber feet are nice, but it would be nice to clip these together with some kind of clip so instead of 4 loose fans its 1 big fan. The feet are good, but since I have 3 cats that can jump on top of the rack it would be nice to link these fans together with some kind of bracket or clip just in case, not too worried about it, but it would be a nice modular feature.Lucky for me its only hot in Minnesota 3 months a year, so most the year these fans won't have to work hard, but they are running 24/7 now in a near 90 degree room. These would be great for quiet rooms, chances are your normal household fan is louder. Love the product, both the old ones I rescued that were not quite ready to be recycled yet, and these new fans.

The media could not be loaded. I bought this fan for my mini PC and I absolutely loved it. It’s quiet, easy to install, and does a great job keeping everything cool. Since it connects via USB, it’s super convenient and doesn’t take up an outlet.I also like that you can use it in different positions, and even though it’s small, it makes a big difference in temperature. Perfect for devices that run hot. Highly recommended — it works great!

This product does a good job of cooling my PS5. I place it behind the PS5 and turn it on. There are several speeds. The unit is quiet. I start the fan when I turn-on the PS5 so that it won't overheat inside the entertainment console. The price is very competitive, and you can added another fan if necessary. You have the ability to couple additional fans.I strongly recommend this product...

I had this thing for a while now, and I first got it with and for my Xbox series s back in 2020, just to wick the heat away, it’s been on for the better part of 5 years, looks dusty and nasty but still works fine, and still wicks the heat from the Xbox to this day. It’s quiet and moves decent air for that sound level, you could put it on high, but for my Xbox, the low setting is more than enough. Just a good quality fan…

Outstanding fan! I use this to keep my Fosi Audio BT20A Pro cool. The amp sits right on top of this fan. If I'm listening to music or watching movies I use the Medium setting. The fan is whisper quiet.