AC Infinity AXIAL 1238W, Muffin Fan, 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.

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.

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.

I have been using these fans for a few years, robust quiet fans, the last ones I bought have this controller for variable speed, same quality fans as the older ones I own.

The good: - Compact fans that can move a lot of air - Comes with everything you need for mounting (bolts, nuts, grates, isolation washers) - Somewhat adjustable speed control (see "the bad") The bad: - The speed control only works from about 60% and up - These fans are loud, too loud Comments: The number one issue with these fans is the controller only works from about 60 percent up. If you set it any lower than that, the fans won't spin up to full speed, they just *very* slowly turn without moving air. I subtracted "stars" for this reason. These fans fall into a unique category of small fans that can move a lot of air. The only real way to move a lot of air in a small fan is to spin it fast, which means noise. And these things are loud. Like tiny helicopters. I didn't subtract "stars" for this, as the noise ratings are given. Although, I suspect these noise ratings are low after hearing the fans. I didn't actually need them to spin at full speed to get the amount of air movement I wanted. Which is why I thought these speed controlled fans would be perfect; I could dial in exactly how much air I needed to move and minimize the noise with the lower speed. Unfortunately, the speed controller can't spin the fans below 60 percent of the maximum and this is still far too loud for me. For the most part, these are pretty cool project fans. Just don't use them anywhere noise is an issue and don't expect complete control of the speed. What I used these fans for (see pictures): I used these fans to make a powered ventilation grate for a small closet housing electronics. With the number of electronics I had in a small space, I wanted to ensure there was enough air flow to prevent overheating. These fans were the perfect size and capable of moving plenty of air (more than needed, really). I wired a thermostat into the power cord. This requires cutting the cord and splicing into it, so obviously there's no returning them after that. They work great, just too loud. They are in an upstairs hallway and you can hear them throughout the entire house, even with the speed controller turned down to the lowest level (again, this is about 60 percent of the max as any lower won't turn the fans correctly).