AC Infinity MULTIFAN S7, Quiet Dual 120mm USB Fan, UL-Certified for Receiver DVR PlayStation Xbox Computer Cabinet Cooling

AC Infinity MULTIFAN S7, Quiet Dual 120mm USB Fan, UL-Certified for Receiver DVR PlayStation Xbox Computer Cabinet Cooling

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AC Infinity MULTIFAN S7, Quiet Dual 120mm USB Fan, UL-Certified for Receiver DVR PlayStation Xbox Computer Cabinet Cooling
Price: $21.99
(as of Jan 24,2026 10:42:26 UTC – Details)

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Customers say

Customers find the USB fan ultra quiet, well-built with sturdy rubber feet, and appreciate its performance, noting it works flawlessly and moves lots of air. The product effectively keeps devices cool, runs cool to the touch, and prevents overheating issues. Customers consider it well worth the price.

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4623 customers mention quietness, 4208 positive, 415 negative

Customers appreciate that the fan is ultra quiet.

Great Fan, good quality, quiet, packaged really well with excellent documentation. Excellent cooling solution for a CNC machine computer enclosure.Read more

Very quiet, easy to set up. I use it for an xbox and a router. Works flawlesly, small but effective. My devices stay cool, no issues. No white noise.Read more

Super Quiet! I had to check twice to make sure they were on! I have them on high and can't hear them at all! Nice air flow. Will be purchasing again!Read more

…They are extremely quiet and the silicone feet not only cushion any vibration but they allow for horizontal or vertical positioning directly on the…Read more

2693 customers mention fan quality, 2634 positive, 59 negative

Customers find these fans to be of good quality, describing them as nice and solid.

Great product, but I’m getting tired of Amazon delivery drivers marking items as given to the individual when in fact they just put it on the porch….Read more

Great Fan, good quality, quiet, packaged really well with excellent documentation. Excellent cooling solution for a CNC machine computer enclosure.Read more

Nice and quiet. Enough air is moved on the low setting to knock 10 or 15 degrees off the operating temperature of a router that likes to get toasty….Read more

Great fans. I put them to use venting an ice maker on a houseboat. I had to cut the wire between them but it soldered right back up. Easy peachy….Read more

2490 customers mention works well, 2410 positive, 80 negative

Customers find that the fan works flawlessly and is very reliable.

…adapter, rubber feet seem really nice (addresses any vibration), works great. Using it on top of the stereo to provide some extra cooling….Read more

Bought for Xbox one. They work great. Fans have a slight noise,but nothing to worry about. Different speeds is nice. Will buy again for other devices.Read more

…nice, fits perfectly on the Xbox Series X and more importantly it works well, you will not over heat your console using the S4 USB ball bearing 5.5"…Read more

…Use them to cool my AV receiver. They’re both quiet and effective, bringing the temp down to a level that I’m sure will prolong the life of the amp….Read more

1731 customers mention keeps cool, 1696 positive, 35 negative

Customers appreciate that the fan keeps their devices cool.

Plugged in to back usb port on Xbox, works great and keeps it cool. My console is in an entertainment center cabinet so this helps tremendously….Read more

Great little fans! Easy to install and keeps my Xbox cool would highly recommend them if you are looking for a quality and affordable usb fan.Read more

…The Series X already has great cooling and thermodynamics but this fan gives me a little more piece of mind to ensure the longevity of the console.Read more

…I have one pulling air in and the other drawing air out. It keeps my receiver cool as though I just turned it on. Also yes they’re quiet!!”Read more

1582 customers mention airflow, 1270 positive, 312 negative

Customers appreciate the fan's airflow, noting it moves a lot of air quietly, and one customer mentions it effectively removes hot air.

this fan is nice and large and therefore moves a lot of air…at the same time it is extremely quiet and can't be heard in any mode except high…in…Read more

…This fan exceeded my expectations. Whisper quiet. Good airflow impressive quality and packaging. Even comes with a cable tie. Very thoughtful.Read more

…These fans are very, very quiet and move a lot of air, keeping my receiver completely cool, preventing over heating and premature circuit burn-out….Read more

Very quite on low with good air flow. Just what we needed. A little more noise on med and hi but not bad. Ball bearings should last a long while….Read more

1170 customers mention heat loss, 983 positive, 187 negative

Customers report that the fan runs cool to the touch and effectively lowers temperatures, preventing overheating shutdowns.

…receiver, Apple TV, WDTV Live, and Gigabit Ethernet switch — cool to the touch. The USB daisy chain design saves space and makes wiring them a snap….Read more

…the fan on top of the cable box, set the fan speed to ‘M’ and no more overheating. It makes no sound at all. Cool and silent.Read more

…this fan my receiver would get quite hot, but with this fan it stays cool even when it’s cranked up to high volumes watching movies.Read more

I am totally satisfied with this product. My receiver is much cooler to the touch even after many hours of use.Read more

949 customers mention value for money, 915 positive, 34 negative

Customers find the fan to be worth its price, describing it as a nice cheap solution.

…quiet I use it to cool my internet gateway it does what I need at a great price you also can daisy chain these together for different setup needsRead more

Works great. Clean wiring, good price and pushes plenty of air for small gear. Perfect for keeping my ghetto networking setup nice and cool….Read more

Super quiet with effective variable air flow. Great value for a reasonable price! Adequately cools my internally lighted ceramic statuary.Read more

…Unit is powered by a USB port. Good value. Users without a convenient USB port will need to obtain a USB powered 115V AC converter plug.Read more

827 customers mention build quality, 785 positive, 42 negative

Customers praise the fans' construction, noting their solid build and sturdy rubber feet.

…Every part feels solid and well made. They've been pushing air 24/7 for a year now without a hiccup. And even the max setting isn't that loud at all….Read more

…I DO recommend these fans, as they are well built and can be chained to power 4 sister fans, but they did not achieve my goal in having the fans run…Read more

…This one is very sturdy and the rubber washer-like bumpers on each corner of the housing give you multiple options for positioning it without having…Read more

These fans move a lot of air and are very quiet. Very well made and so quiet. i put these under my tv and i did not want to be able to hear them….Read more


Great Fan with additional potential.

5 out of 5 stars

Great Fan with additional potential.
I bought this fan for a new AV Receiver, but it did not work for my application. However, due to its size it makes a great USB fan for my desk. Using a 3D printer I was able to make a stand for it to sit at a slight upward angle and a cradle for the control. The fan throws just the right amount of air at me. Enough to gently feel it but not so much that it becomes annoying (even more so with the three speeds). Additionally, it is absolutely silent and the fact that it is USB powered makes it perfect for my home office. During hurricane season, if we lose power a rechargeable battery pack will run this thing forever. I have the S1 which is 3" x 3" or 80 mm.
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Top reviews from the United States


  • Shay

    5.0 out of 5 stars

    Excellent cooling solution — fixed my overheating router instantly

    Reviewed in the United States on December 31, 2025

    Size: S4Verified Purchase

    Bought these during the summer when my internet started cutting out. Turned out my router and modem were overheating. Added these AC Infinity USB fans and the problem was immediately fixed.

    They’re quiet, move plenty of air, and I really like that they can be daisy-chained so multiple fans can run off one USB port (I daisy chained the 120 and 140 together and plugged them directly into my router). Setup was simple and clean.

    They’ve been running continuously for months with no issues. Solid, reliable, and absolutely worth it.

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    Shay

    5.0 out of 5 stars

    Excellent cooling solution — fixed my overheating router instantly

    Reviewed in the United States on December 31, 2025


    Bought these during the summer when my internet started cutting out. Turned out my router and modem were overheating. Added these AC Infinity USB fans and the problem was immediately fixed.

    They’re quiet, move plenty of air, and I really like that they can be daisy-chained so multiple fans can run off one USB port (I daisy chained the 120 and 140 together and plugged them directly into my router). Setup was simple and clean.

    They’ve been running continuously for months with no issues. Solid, reliable, and absolutely worth it.

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  • J. Coyne

    5.0 out of 5 stars

    UPDATE: Just Repurchased! Works great, very quiet, no vibration

    Reviewed in the United States on February 6, 2021

    Size: S7Verified Purchase

    2/11/2021 UPDATE! Just reordered another S7 pair of fans! Andy, I have never met you, but I sure like these quiet fans and continue to recommend these!

    I have three of these fans in a media closet that is about the size of a tall refrigerator. Inside on shelves I have a high-powered AV receiver, a BluRay player, a Cable TV DVR, and other stuff that is producing an amazing amount of heat. When we built the house the wife wanted all AV equipment hidden, and as an Audiophile I wanted to be able to see what I want to see and hear what I want to hear in the Home theater seating area, but without any extraneous noise.

    Solution: I bought this item, and set two fans on top of the AV Receiver and a third identical fan on top of the cable box/DVR. Closed the door and waited an hour. Heat load dropped in half. I did not want to just move a hot air around in this large closet, so there is a passive vent installed in the sealing of the closet …. just a simple louvered floor vent like people have in their homes for floor heat. I just waited until the wife unit was out of the house and used one of her good steak knives to saw a hole in the drywall ceiling a drop this Lower cheap floor vent in:) Vacuum the mess up and done. These fans have been running flawlessly for two years now – and my wife, who could hear a mouse fart, has never noticed them.

    Quality/overall impression: Frankly, I thought these were two cheap to be really durable, but I bought them because at the time they were one of the few USB fan setups with a speed controller, no fan-boi disco light show LEDs, and with a CEC rating. The fans are very quiet, well-made, and have nice rubber anti-vibration feet.

    I was nervous about leaving cheap fans on 24-7 because the last thing I want to do is have a house fire because the units were wired up by orphaned slave labor recruited from a deplorable third world slum. But those fears were immediately put out of mind when I opened the box upon receipt. Beautiful packing, high quality wiring and fan construction.

    I am back on their site today reordering a second set to place on my desktop next to my computer workstation. I have a couple of good friends who work designing high end consumer electronics – the really pricy stuff. Both techs told me that placing a good quality cooling fan on an AV receiver can add several years working lifetime to such units.

    Therefore, I highly recommend these AC Infinity products. Just buy the dual fan setup, set the speed controller wherever you are comfortable and forget about them! (slower is a little quieter, but even on high these were very acceptable for my application) And like I said, I am back today repurchasing another set, which I should have done long ago:) Heat kills electronics. And if you are checking out cooling fans, you already know that stereos, AV equipment and computer gear can generate enough heat to slowly nuke your gear…

    Next possible project for these…. We have a couple of large walk in closets, which we keep the doors closed on because our ever-curious weenie dogs like to curl up in when we are not home. Anyway, I put the old computer fans, which were too noisy, in the closets to keep the air circulating and not smelling musty when we have been gone for awhile. One of these small fans would be much quieter, and would be strong enough to push all the air it needs to under the closet door to keep things smelling fresh in there – even after we have returned from a couple weeks vacation.

    28 people found this helpful

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  • Flying Walrus

    5.0 out of 5 stars

    Cooling my modem and router

    Reviewed in the United States on October 31, 2022

    Size: S5Verified Purchase

    My last cable modem up and died after just one year, I'm pretty sure because it got so hot all the time. It was a modem+router so extra hotty-hot-hotness from all the circuitry packed into one case. My son thinks this is sort of normal lifespan for routers and modems – he expects only 3 to 4 years. Well I got 8 years out of one of my last modems and 10 out of the other (same modem, WTGS54 whatever that was, it was a very good modem for its time and I got more than enough throughput from it for my needs, including streaming video, I was still running one up until 2 years ago).

    So *I* was shocked at its short lifespan (especially given the cost, over $200) even if he wasn't.

    There is just more electronics involved in these tasks, packed into less space, than the older modems. They are GOING to get hot. So in order to keep that from happening again I bought this USB fan kit, comes with 2 fans hooked together, to replace the floor fan I had aimed at the new modem and separate router. I was getting some of these anyway to put on my LED grow lights to cool them (they will ALSO last longer if you keep them cool) so I took one of those and shoved it under the router (because its a flat design, give me vertical any day) and stood the other one up next to the cable modem (which is vertical).

    I've got them on low and they are cooling both devices very well. On low the router gets barely slightly warm, and the better design of the vertical case for the modem leaves it totally cooled down with this little fan. If I had it to do over I'd look harder for a vertical router as well, its easier to keep them cool. AND they take up a lot less space! I've got a bunch of old computer cases with fans going to waste, I will likely make some USB fans from all those old bits and pieces, but they are likely to be a lot louder. This fan is extremely quiet even on high. I can't hear it at all on low.

    Also these fans in particular are optimized for humid environments so I wouldn't use anything else in my grow room. A lot of people use the other dual fan kit with the larger fans but they are using them to move air over microgreens to cut down on mold and fungi, I don't have that problem, I just need to cool the lights to improve their longevity, so I'm trying these smaller fans (take up less headroom over the lights, giving me more space under the lights because I can move them further up).

    I highly recommend cooling your router/modem/game console whatever electronic devices you have sitting around generating heat with some kind of fan, and these are very quiet, easy to assemble (as in plug them in), and very effective. I've seen some people insist that you shouldn't do this because it might "blow dust into the case" – where do these guys live, in the middle of death valley? LOL! Just do it. I've had a floor fan blowing across my very very ancient laptop to keep it from overheating for about 5 years now (even laptop coolers can't cool it enough) and its still going strong. I can even play (very very old) games on it still. Heat will kill your devices WAY faster than whatever tiny specks of dust these fans probably won't blow into the cases anyway.

    Also, if you have one of those stupid refrigerator closet things where they've built an enclosure all the way around the fridge, that is trapping heat and shortening the life of your expensive stainless steel fridge – you can use these fans to draw hot air out of that too (though I'd go with the larger version for that). Personally I'd tear that crap out but failing that, install these in a side or back wall and pull that heat out of there. Your fridge will thank you. Your bank balance will be the better for it over the long haul.

    19 people found this helpful

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Top reviews from other countries

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  • Muneer Lyati
    5.0 out of 5 stars

    Work fine

    Reviewed in Saudi Arabia on April 26, 2024

    Size: S4Verified Purchase

    Good quality 👌



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  • Gerald Rajesh
    5.0 out of 5 stars

    Excellent product

    Reviewed in India on July 27, 2018

    Size: S3Verified Purchase

    Excellent performance just love it build quality excellent keeps my PS4 and Xbox one x in ample temperature



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  • ALESSANDRO RIBEIRO
    5.0 out of 5 stars

    Excelente produto.

    Reviewed in Brazil on January 3, 2026

    Size: S2Verified Purchase

    Excelente produto, resolveu o problema de aquecimento no meu AV Receiver.



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  • Amazon カスタマー
    5.0 out of 5 stars

    静かで高CP

    Reviewed in Japan on November 9, 2025

    Size: S2Verified Purchase

    とにかく静かです。価格もお手頃なので高CP。



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  • Casey
    5.0 out of 5 stars

    Works wonderfully to reduce temperature of AV receiver.

    Reviewed in Singapore on May 13, 2022

    Size: S7-PVerified Purchase

    I notice my AV receiver runs very hot. With the AC Infinity fans, the temperature has come down a lot with these fans at medium setting. Can't recommend these fans highly enough.



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Product Summary: AC Infinity MULTIFAN S7, Quiet Dual 120mm USB Fan, UL-Certified for Receiver DVR PlayStation Xbox Computer Cabinet Cooling

From AC Infinity
Ultra-quiet UL-certified USB fans designed to cool various electronics and components.
Features a multi-speed controller to set the fan’s speed to optimal noise and airflow levels.
Dual-ball bearings have a lifespan of 67,000 hours and allows the fans to be laid flat or stand upright.
USB plug can power the fan through USB ports found behind popular AV electronics and game consoles.
Dimensions: 4.7 x 4.7 x 1 in. per fan | Total Airflow: 104 CFM | Total Noise: 19 dBA | Bearings: Dual Ball

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