AC Infinity AXIAL 1238, Muffin Fan, 115V 120V AC 120mm x 38mm High Speed, for DIY Cooling Ventilation Exhaust Projects

Excellent quality, high performance fan pack. It move a high violin of air and is extremely quiet. I mounted it above a Mr Heater Blue flame heater in my garage and it does a great job

very nicely done.. very well packaged and works like it should very well built lets see if they last!! I used them under my fireplace ducting to route air up and around the space that goes to the main fan 2 did the job nicely and push enough air to make our hhome cozy!! extra air circulation is key to a fire inset area.. just make sure you put them in an area where there is NO heat just cool air!! the dial sitts just outside the vent under the hearth and blends in well the plug was used and it sure is handy.. a bit high noise level but we only run it on low when in the room or option to turn it off as secondary pusher fans! great product quality and very affordable!!- NO im not paid by them either!! keep up the quality!!

I purchased two 120mm fans from AC Infinity, one high speed and one low speed. The short story is that both fans are awesome quality. The high speed fan is a little too noisy for a living room entertainment center but makes some impressive airflow. The low speed fan is quiet enough to use in the living room, 6 feet away, and not make a noticeable amount of noise while still moving plenty of air. If you are looking for a fan, buy one of these. I built two stereo cabinets with intake filters and used these fans as exhaust fans. Since I had two cabinets, one for the shop and one for the house, I bought both the high speed and low speed fans figuring I would put the high speed in the garage if it was too noisy for the living room. Both fans are very high quality, sturdy aluminum surrounds. The high speed fan is about twice as thick as the low speed fan but otherwise they are identical. All the hardware necessary to mount them was included and mounting screws were long enough to mount through 3/4 inch thick plywood without problem. The high speed fan did turn out to be more noisy than I wanted for the living room so it ended up in the shop. The primary purpose of the cabinet in the shop was to protect the stereo from metal dust and other nasty garbage, but I have no doubt that a single 120mm high speed fan will circulate more than enough air to cool any electrical component or series of components you could assemble. I am using a standard 16 x 20 inch ventilation duct filter from the hardware store and the fan generates enough force to hold the cabinet door (20 x 24) shut with a clean filter. Even now that the filter is getting clogged with sawdust and grinder dust the fan is still moving air. The only downside is the noise. For comparison, if you have heard a PS4 switch from normal cooling to high speed cooling, that is about how loud this fan is. The low speed fan is perfect for my stereo cabinet in the house. It is quiet enough that you forget it's on as soon as you turn on the radio or TV and sit down on the couch six or so feet away. I have a receiver and a PS4 in the cabinet and the cabinet temperature has not risen above ambient enough that I can tell by feel, even after hours of movies or video games. This is in a small footprint cabinet with no room inside for internal circulation, so the PS4 gets hot very quickly without the fan on. I know the fan is doing all the work cooling and getting it done nicely. I have little doubt these fan will last for years based on the quality and they are definitely worth the price.

I order the pair of 120mm fans with speed controller to vent my homelab computer rack located in my guest bedroom closet. These fans and controller are very well built, easy to install, and they operate smoothly, but they are not very quiet. Maybe I was expecting too much, but it will be hard to use them on an ongoing basis - I will rig up a temperature sensor and smart plug to only kick them on when absolutely necessary. The move a lot of air and will probably cool well, and the speed controller goes from medium low to very high.

I mounted this fan in one upper corner of the doorway into a bedroom, in order to blow some warm air from the hallway into the bedroom. Even though the fan is "free-hanging" without any external ducting, it does fairly well at bringing in some warmth without producing very noticeable noise (when running at low-to-medium speeds. The fan does make noise when running at full speed that is noticeable, but not loud, at 10'-15' away). The mounting brackets allow various mounting options, and the one I used allows the fan to be "aimed" at a desired horizontal angle, which is helpful for directing the air flow in the optimal direction into the room. The speed controller is built in-line on the power cord, and can be mounted to a surface if desired. The only problems that I encountered were sort of specific to my situation: First, the hardwood door frame did not accept the mounting screws easily - even after I drilled some "pilot holes". Second, I did not mount the speed controller, and it's free-hanging weight caused the power cord to pull off of the terminals of the fan - so I had to tie that end of the power cord to the fan as a strain-relief. Another potential problem is that an extension cord may be needed if there is no electrical outlet nearby. (In my application, there is an outlet next to, and outside of, the door within 5' of the fan, so the cord can be plugged in without an extension, and without interfering with closing the door). Despite the minor challenges of mounting to my door frame, and a lack of aesthetics, the bottom line is that the fan moves warmth into the bedroom with barely noticeable noise, so it does well the job that I want it to do.

Just out of the box, this looks like quite a nice fan. _In_ the box, it looks even nicer - enough so that I found myself wondering how much less I would've paid for just the fan with bare leads. Still, if I'm going to be paying $17 for a fan, the nice packing job, slickly printed manual and black enamel hardware (2x custom-branded finger grills, 4x 55mm M4 screws, 4x thick rubber washers, and... err... 5x nuts. oops. guess there's a spare) do help a little to make it feel like I'm getting my money's worth. The fan itself is much sturdier/heavier than I expected - having apparently missed the bit where it was described as having a cast aluminum frame, I assumed it was the same black plastic as most DC muffin fans. It's not. The frame on this thing is built like a tank, and, while the hub & blades are still the usual PBT plastic, I suspect the short stubby shape will also be less damage-prone. Not that I regularly damage fans by jamming screwdrivers, fingers, or whatever other device and/or appendage might be convenient into the spinning blades - that would be silly. And reckless. And might explain why my fingers are always sore. I'd initially wondered about the effect those short blades with the large hub, and, as expected, it causes a pronounced ring or tube-shaped airflow, with a not entirely dead, but much calmer area in the center. I can imagine some specific cases where this might be less than ideal, but I expect it will make little difference for enclosure cooling (except in my case, where the heatsink placement means it's solidly an advantage). It's not a silent fan by any stretch of the imagination (not surprising, for a ball bearing fan at 3000+rpm), but it's not loud or intrusive. If I set it on my desk, I can hear it from the other end of a silent room, but you won't find yourself yelling over it - I've had PCs that ran much louder. Those vibration dampening rubber washers in the hardware packet will also do a lot to keep it from resonating your enclosure into a loudspeaker, too. As can be seen by the cast-in logo on the frame (or by looking at AC Infinity's site), this is a re-badged Cooltron fan - apparently the FA8025B11T7-96. Searching by model number, you can find datasheets with static pressure & airflow performance graphs, if you're working on the sort of project where that's important or you're the sort of person who can start planning to that sort of detail without immediately getting a headache. I included pictures of the power terminals - with and without the cable attached - as that was something I couldn't find a clear view of before ordering. While the wall end of the power cord has a polarized plug, there isn't any sort of polarity protection on the fan end - it's possible to attach the cord in either of two orientations (which Cooltron's datasheet suggests is perfectly safe), depending on which is a better fit for your project. Also visible in the shot of the terminals is an M4 threaded hole for an optional grounding screw (not included) - there's one on the opposite corner, too. If you make it to the end of the (short) manual, you'll find another unadvertised surprise waiting for you: a two year warranty. Of course, when it dies in a year and a half, I'll have completely forgotten the warranty, toss it in the bin, and go shopping for another... but it's the thought that counts... or at least that's what my mother told me every time I got a gift that I couldn't imagine myself ever using. Longevity remains to be seen, but overall the fan makes a good first impression. Well, mostly. I was disappointed to discover that, contrary to the description, it neither includes, nor makes, nor tastes like muffins, and would be a poor choice for a bake sale.

Dig these 1238s a lot! Solid price, robust aluminum frame, mounting hardware, grill guards and power cord. I upgraded to a dual fan setup with speed control for a project when I thought one was enough, and that’s what I like about these too, very easy to upgrade and configure. I didn’t have to clip strip and heat shrink anything. They run so quiet and worked right out the box. I have other products of theirs and all just feel so premium. I feel like I need to make up projects so I had an excuse to get more to use haha. These fans at this price help so much for low budget diy projects. Listing the specs and everything also very helpful, will suggest to anyone in need of a fan for their project. I’m truly a fan… of these fans… 😅

I am using three of these as an emergency heat dump for my entertainment center cabinet. The cabinet has three 120mm low-speed (very quiet) fans controlled by an accurate NZXT computer fan-speed controller. It does a great job of cooling the cabinet at the slowest (quietest) fan speeds, but being electronic, has the potential for failure. And did, once. If that happens and the cabinet goes over a safe temperature, a very simple mechanical thermostat turns these fans on. Pros: Very solid, high quality cast aluminum construction, with very good bearings, well balanced, vibration-free. Moves a very large amount of air for its size. Well worth the money. Cons: The connector system is UNSATISFACTORY. The fan has a pair of solder tabs, about 20 thousands of an inch thick and about 1/8" wide. They are very soft and bend easily. They clearly were not intended for use with a removable connector. The connector on the supplied cord set depends on friction to hold it on the tabs; similar connectors on the cheapest computer fans have a simple latch to prevent accidental disconnection. During testing, one of my HS1238A fans stopped because the connector had come loose. It was the first of these I bought. and I had attached and disconnected the cord about three times. The contacts are evidently too soft to tolerate this. Since this fan hopefully will NEVER turn on--it's only powered up if the quiet cooling system fails--a single-fan emergency system would be useless, and I'd never know it! Comment: Very noisy--but it's not mechanical noise, it's high-speed airflow. That's why you buy this thing! It is FAR too noisy for use while enjoying a movie or classical music. But it's great as an emergency backup. Unless the connector fails. I removed all the fans and permanently soldered the line cords to them. That changed a 1-star rating to a 5-star rating. But since It is unreliable as delivered, and it was difficult to solder to the small tabs, I must rate it much lower. I have done a lot of electronic construction, so when I say difficult, I do mean difficult. The tabs are relatively short and in a recess. They have a 1/16" hole that is a tight fit on an 18-AWG stranded line cord conductor. I had to tin the strands together and run a 1/16" drill bit through the hole by hand to get it to stay in place for soldering. Fortunately I had a good soldering iron and an assortment of insulating shrink tubing on hand. If you buy this kit and don't want to cut the cord and solder it, meaning you are not a masochist, I recommend strongly that you attach the line cord ONCE ONLY and cover the connector with a nice gob of silicone sealer to prevent it from coming loose. I installed 3 fans to protect each equipment shelf independently. I had intended to use just one for the entire cabinet--the fan that failed! Now I'd say that just because of the connector problem, I would use at least two of these in any installation that protects valuable property.