AC Infinity MULTIFAN S7, Quiet Dual 120mm USB Fan.

I was using a laptop cooling fan on my receiver, but needed it for.... my laptop! I was about to purchase another laptop fan to keep the receiver cool when I came across these and thought I would give them a try. These dual fans work great! At six feet, there is plenty of cord to plug it into an electrical outlet with the supplied USB power supply. There is also a power switch about half way along the power cord. My receiver has a USB connector so I just use that and the fans are powered automatically when the receiver is on. There is also another USB connector near the fans to connect more cooling fans. The instructions state that the power supply is good for four fans (I would assume it means four total and not four pair). Put out plenty of air with very low noise from the air moving through them. You can hear this noise when all is quiet. But if you're using the fans on something like a receiver of game console, then you most likely will have some sound going on as well. In that case, what little noise will not be heard. I have also not noticed and electrical interference while using the receiver with the fans on. They are not really stylish, but that is not the job they are intended to do. My receiver happens to be black like the fans so they don't stand out. I spaced them evenly on top to draw the heat out through the top vents, not blowing the air and dust into the receiver. I have not used them in this manner, but they may be ideal fans for stereos in a cabinet. One for each shelf area and holes could be cut for areas to allow the fans to exhaust heat. They have grilles mounted to both sides of the fan so no worries of much getting caught in the blades. If I ever need more cooling fans, I will be getting these again.

This fan was pretty much what the doctor ordered for my Pioneer Elite SC25. After 6 years of ownership it had developed a shutting on and off issue which was intermittent but the last year the issue really worsenned and would not stay on for longer than 30 minutes or so. I was hunting for a replacement but finding the feature set of that receiver with a class D amp is merely impossible under 3k these days. I use this amp for 2.1 channel sound at high volumes. I bought this multifan S7 from AC Infinity as a last effort to salvage it (amazing sound) and save me some coin and the S7 does the job. I have placed one fan blowing in and one out and it keeps the receiver way cooler. No shutting down issues after about 5 hours of testing with up to 2 continuous hours of use. Needless to say I am very happy and richer as I was willing to spend a large amount of cash to replicate the sound of the sc25. Definitely give this a try if you have cooling needs. Also use it even if you don't becuase it is a preventive measure to cooking your electronics (as i likely did) prematurely and potentially shortening its life. The design of these things by the way is solid, nothing cheap here. Fan is way quiet and throws a lot of air. It is also efficient, the speed selector works well (and makes a difference) and gets powered by the USB plug on the receiver itself which is always powered! Sweet action! Give it a go!

I bought these fans to cool my 700 watt surround sound system receiver that produces a lot of heat, so this review will be in depth and thorough. I ran two tests, the first with the receiver on top of the cabinet with open airflow, and the second inside the cabinet with closed airflow. I will also use an Infrared Laser thermometer to test temperatures inside of the receiver, from whence the heat is created and is at its hottest, especially on heat sinks and chips. My receiver is vented all over the top and bottom so peeking through isn't a problem. Test 1 - For test one the receiver will sit on top of the cabinet with open airflow. Since heat rises i have placed the fans on top of the receiver blowing upwards since there is no room underneath it and the weight of it will crush these two fans even though they are built pretty tough. With no fans my receiver idles around 150 F and at loud volume rises to 200ish F. That's just too much. Now i throw in the dual AC Infinity fans and start them out at low and move to medium and them high, taking temperatures as i go. On low speed, temperatures only came down to about 190 F, so still no cigar. On medium i got more result, down to 150 F, which is what i call the green zone. And on high, the temps came down to a whopping 98 F. Also, the only time i could hear noise from the fans was on high, so they are indeed quiet and powerful. The static pressure wasn't bad either, i have more powerful inside my PC but you can actually feel some air coming from these. Test 2 - For test two the receiver went inside the cabinet. I expected results to be worse in there due to the restriction of airflow but i was surprised. With the fans in the same place i started with low speed and measured 180 F inside the receiver. I'm guessing the fans get better directional airflow inside a cabinet without things like a ceiling fan interfering. Medium speed is where it got interesting, 125 F is what i measured from the laser. And then on high speed, i measured a chilling 88 F on the heat sink around the power supply inside the receiver, usually the hottest spot i can point at with the laser. Very impeccable results. The only thing is that after 30 - 45 minutes there is a build up of heat inside my entertainment cabinet, so must leave the glass door open for heat to escape while in use, but now i wont haft to worry about it catching fire. Conclusion - Totally awesome fans. Their performance is impeccable. Also, they construction is very very solid and nice. If my reciever was just a little smaller and lighter i could sit it on top of these and have them blowing from the bottom. The grills are child finger proof and easy to clean, and the wiring and switch has nice thick cable and strong plastic. And the extra female USB port is great for when you need that third fan, or another set of AC Infinity fans. The only thing i could see improving here, other than the obvious like RPM's and static pressure, is making a true AC wall jack powered version of these with the double - triple - quadruple fan setup for devices that don't have USB ports. I know AC Inf. makes AC powered fans but they're all singles. Need multiples! I would highly recommend tese fans to anyone who needs extra cooling for their non-desktop PC electronic devices. You wont be disappointed.

This might be a long review, but it might help someone that could use this product. I live in a hot summer place and before leaving on a camping trip I will start up my fridge for the trip. I noticed it wasn't cooling like it normally would. I asked AI and it explained that a 2 way fridge needs to have air to cool it. Of which right now don't have. I was worried with one review that said it caught fire, as I am using it in my travel trailer to cool my 2way fridge. Our last trip I thought i needed to replace it, at 1500, I was looking for alternatives so I was using a rechargeable fan prior to leaving to get it cold and I was relieved that it actually work. The AC Infinity fan kit came the same day we were leaving so I took it on our camping trip and installed it there. I had noticed in the past the countertop would be warm to really warm. Last thing I wanted was a fire trap. So I installed it on the top vent panel and dropped the USB line down the left side away from the real heat and out to one of my power banks. It worked better then I had imagined. Most reviews were about Xbox and other electronics, way off from what I was needing these for. I did need to remove the rubber pads to fit, which to my surprise didn't effect vibration. I am very pleased so far. I zip tied both units to the grill, dropped the USB down and out the bottom grill. This 2pk was an amazing kit. Like that they are UL certified. There is NO fan noise no matter the mode. Very easy to use and with the USB connection I find it a better way to go for me. They look and feel of good quality. Very stable and compatible for almost any heat removal. I want to give 5 stars but I've only used it for 48hr. But if this saves me from damaging my trailer fridge I would give it a 10 star. I'll update this review when I put it to test when the ambient temperature is hotter. But for now super pleased so far with how they are very quiet and do their job.

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.

I have these zip tied in a custom cut out that I had to do right behind my receiver which was getting very hot during loud music. The clearance for the receiver was very minimal. In fact I couldn't even place a fan on top of the receiver blowing into it which would have been ideal. Overall these fans are a great bargain. Here are some of the things that I like: 1. The fans come with grills which are very nice for external components (unlike a PC case fan). 2. The rubber feet are a great addition and I could definitely see using these fans to set on top of set top boxes and receivers blowing into the product. The feet give the extra clearance I think for the air to flow more efficiently. 3. The USB feature is priceless. I have a USB port on my receiver that is supposed to be used for a wifi adapter. Needless to say I use the port for these fans and it is great because the fans power up with the receiver and turn off when the receiver is off too. All I had to do is obviously turn the in line fan switch to the appropriate position. 4. Comes with the ability to string another set of fans in line with the added USB adapter. Here are a few cons that could use some work for future fans: 1. Not quite as QUIET as I expected. For this reason I would give this product a 4.5 star review if it were an option. To give you an idea... I have these fans behind my receiver which is in a giant entertainments center. I have a HTPC/server to the left of the entertainment center (on the ground). I was sitting next to my HTPC/server today to plug in a USB thumb drive and I heard the AC Infinity fans. To confirm it wasn't the HTPC/server fans (which has four 120mm fans in it) I turned off the receiver thus turning off the AC Infinity fans. Needless to say the fan noise stopped... the HTPC/Server was whisper quiet (granted the fans are in the case). Anyway... the fans are much louder than I expected. I do, however, believe that this isn't going to present a problem though as I know that the receiver being on constitutes loud noise from music and/or movies. 2. Another thing that would have been nice is to have some place to put my zip ties through. If I removed the rubber feet to use the holes I would have had to zip tie the metal guard into place. In any event, I just improvised but it would have been nice to have some pre drilled holes nearest the edges of the fan. My fabricated hole in my cabinet preceded the fan installation by a year (I though the hole would help with the heat but it didn't do much).

These fans are great for ensuring circulation, cooling, and minimizing fan noise for your PS4. I’ll list some PRO TIPS below (pun intended). READ BELOW FOR THE TIPS. Though it’s completely normal for your PS4 to get medium-hot, it never hurts to maximize cooling for any electronic... ESPECIALLY in enclosed places. When the system is cooler, the internal fan don’t need to work as hard, maximizing efficiency and naturally prolonging the life expectancy and overall reducing its noise. These fans are super quiet and by keeping the system cool, the internal fans don’t need to work half as hard, thus reducing overall noise significantly... Which is a great bonus. With these fans on high setting, placed like in my photos, my PS4 never exceeds a mild warmth. These fans are versatile, allowing you to link more fans if you’d like, and allowing you to set them up however you’d like depending on your setting. NOW FOR THE TIPS: 1. Do this first! You’re probably aiming to reduce noise and/or keep the system as cool as possible, so I’d HIGHLY recommend to begin by dusting out the internal fan just for the added benefit. It’s very simple with the PS4 PRO. Simply pop off the top cover and air dust or lightly wipe off the fans and place the cover back in. (Refer to how-to videos online). This’ll keep the internal fans running efficiently. 2. USB tips: (1). There is a hidden USB port in the BACK of the PS4 PRO use that one to keep it out of the way and to leave your front two USB ports free. (It can turn on and off with your PS4) (2). You’re likely using a 4K TV or any TV with many ports these days, so chances are you have a USB port in the back of your TV, that is another convienent option for you. I use this option. (It can turn on and off with your TV) (3). You can simply use an adapter to plug into the wall, but you’ll have to remember to turn it off and on manually. 3. Fan placements: (The side that blows out is the side where the wire is visible) The placements I personally recommend and use myself (pictured) is one fan on the bottom holding up the PS4, blowing UP onto the bottom of the PS4 and one fan sitting on top blowing DOWN onto the PS4. Creating an external fan sandwich. Having the PS4 lifted will also allow the bottom to get some proper air flow. (I found a foam and plastic piece that I placed under the front of the PS4 as well, just to make sure the PS4 sits comfortably & with better balance.. I’d recommend something like that too). Side note: if you’re gonna set it up like this, put something under the feet of the fans if you’re placing it on wood.. Otherwise, it could leave light rings in the wood from the pressure. Alternative placements: (1). You can sit up one of the fans so it blows right into the vents on the right side of the PS4, this’ll help get cold air into your PS4. Not a bad option. (2). You can also sit up a fan at the back of the PS4 (where air escapes from the system), blowing air AWAY from the PS4 - helping suck the air out. But honestly, i think the other methods are more effective. I’d probably only recommend this one if your PS4 is in an enclosed area and you want to help the hot air escape from the area (like fan cutouts at the back of your enclosed area). Otherwise, the other methods work better in my experience. If you found this review helpful, please thumbs up this review! Thank you.

Works as expected. It keeps my equipment much cooler without added noise.

Acquistate assieme al suo controller per il raffreddamento di un sito amplificatore all'interno di un mobile. Davvero sorprendente la differenza di temperatura all'interno, si accendono automaticamente al raggiungimento di una determinata a temperatura. Consiglio assolutamente questo prodotto.

I don't always right a review but was so impress by these fans that I to write a few words. I use these on top a Denon X3400H receiver that only has about 2.5" of space left above the AVR well in the TV unit, so not much airflow even though theirs plenty of space for air flow on the sides of the AVR like most receivers these days theirs no internal fans, so the hot air just dissipates out the top of the AVR naturally and if your units in a TV unit odds are its gonna run quite warm to the touch. These fans work amazing! simply place them on top your AVR (infinity logos facing up) to pull the hot air out of your unit and it will stay nice and cool to the touch. The fans rubber isolation feet are a nice feature, as well as the built in metal fan grills/dust shields (little touches like that along with its ease of use and fair price was the reason I want with this infinity fan set over making a DIY setup using spare PC fans) and the ease of use/versatility is a big plus, being that these are USB fans you can plug them either directly into your AVRs USB port (so they power on with the unit) or into a USB power block plugged into a wall/power-strip and you can simply use the controller to turn them off when not in use or just run them switched on all the time... personally I never use my AVRs USB port so I just plug the fans directly into it and being that I only have a front USB port on my AVR, to keep things as clean as possible I choose to run the cord under the AVR tucked behind one of the AVR feet and out the side of the unit, twist tying the excess wire which leaves the controller nice and handy beside my AVR. I was worried that with the fans on top of my AVR that there wouldn't be enough space left to actually allow the fans to circulate the air out side of my TV unit... there's likely only about 1/2" of space left above the fans but to my surprise even on the low setting they keep my AVR vary nice and cool for hours... vary silent fans and vary efficient I haven't really had the need to even go above the lowest setting to keep my AVR cool, 90% of the time its low and odd times i'll set it to med or high to really exhaust any stagnant hot air that might be inside. Overall I highly recommend these for the price they're a must to keep any of your expensive electronics that run hot nice and cool... its a small investment to prolong the life of your much more expensive gear.

Ürünü ses sistemime ilave soğutma sağlaması için aldım ve gerçekten etkisini hemen gösterdi. Çift fanlı versiyonu en hızlı kademede bile rahatsız etmiyor ve üfleme hızları da gayet tatmin edici. Mataryel tasarımları kalitesini belli ediyor.

Probably the most efficient USB fans out there. Good to cool AV or server racks that are not in their dedicated rooms (which is really what most people have to work with). There should be more AC Infinitys!

للتبريد راوتر او جهاز AV