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AC Infinity

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

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Availability: In Stock.
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Arrives Sep 4 – Sep 9
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Size: 120 x 120 x 38 mm, High Speed


Features

  • Designed for projects that requires cooling or ventilation; or as a replacement fan for various products.
  • Includes a heavy-duty aluminum fan with power plug cord, two fan guards, and mounting screw set.
  • Dual-ball bearings have a lifespan of 67,000 hours and allows the fans to be laid flat or stand upright.
  • High Speed: This model is designed to maximize airflow and can be too loud for some applications.
  • Dimensions: 120 x 120 x 38 mm | Airflow: 110 CFM | Noise: 47 dBA | Bearings: Dual Ball

Description

AC Infinity is a technology company that specializes in environmental controls for audio/video and HVAC. The company was founded on the principle of working closely with customers to develop great products. Dependable service and a commitment to product quality are the foundations of the business's values. Visit the Store Visit the Store Visit the Store Visit the Store Heavy-duty fan kits designed for various DIY projects that requires cooling or ventilation; or as a replacement fan for many products on the market. Each fan is constructed of die-cast aluminum and suitable for various environments. Thermoplastic impeller meets UL 94 flammability standards. Dual-ball bearings rated at up to 67,000 hours allows the fans to be mounted flat or upright. Impedance protected motors have a high resistance to heat. The axial fan is UL recognized under certificate E503903 by Underwriter Laboratories. Verifiable through UL Online Certifications Directory. All fans run at 100 to 125V AC and include a power cord. Just plug it into a wall outlet to start the fan. Includes dual fan guards and screw set.

Product Dimensions: 4.7"L x 4.7"W x 1.5"H


Brand: AC Infinity


Power Connector Type: 2-Pin


Voltage: 120 volts


Wattage: 18 watts


Cooling Method: Air


Compatible Devices: Server


Noise Level: 47 db


Material: Aluminum


Maximum Rotational Speed: 2600 rpm


Power Connector Type: 2-Pin


Voltage: 120 volts


Wattage: 18 watts


Cooling Method: Air


Compatible Devices: Server


Noise Level: 47 db


Maximum Rotational Speed: 2600 rpm


Air Flow Capacity: 110 cfm


Item Dimensions L x W x H: 4.7"L x 4.7"W x 1.5"H


Material Type: Aluminum


Brand Name: AC Infinity


UPC: 854759004181


Global Trade Identification Number: 81


Warranty Description: 1 year warranty covers all defects


Manufacturer: AC Infinity


Number of Items: 1


Unit Count: 1 Count


Item Weight: 0.27 g


Model: HS1238A-X


Part Number: FBA_1238AXCF115VAC120mm


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 4 – Sep 9

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Excelente Rack Fan with Outstanding Speed Control!
Size: Single 120 x 120 x 38 mm, High Speed
Excellent Rack Fan with Outstanding Speed Control! I purchased this rack fan (with 110V adapter) for my 19U open-frame server rack, and it has exceeded all my expectations. What truly sets it apart is the fantastic speed control switch — Off, Low, Medium, and High. Being able to completely turn it off when I need to clean or work inside the open rack is incredibly convenient. On Medium speed, it already delivers excellent airflow and keeps my equipment running at very comfortable temperatures. If you don’t mind the noise, High speed really moves a lot of air. For those keeping the rack in a bedroom or quieter space, Medium is perfect and sufficiently effective. I actually bought two units: one mounted at the top for exhaust and another placed inside the rack. Living in Guayaquil, where the heat and humidity are brutal, this setup has made a huge difference. My networking and server equipment now stay at optimal temperatures even during the hottest days. The speed control feature is magnificent and makes this fan far more versatile than standard rack fans. Highly recommended if you’re looking for reliable cooling with real control! ... show more
Reviewed in the United States on June 18, 2026 by rmontalvo5
    • High quality product, great customer service, rugged
Size: Single 120 x 120 x 38 mm, High Speed
First off, let me say that AC infinity has exceptional customer service. I had some concerns about my fan right around Christmas time, and they were very willing to assist me. You should have confidence in support buying this product. Now for the actual fan it’s self. Right out of the box, I can tell this is a strong fan. It boasts a heavier weight than most crappy usb fans because it’s made of metal, and I adore that. You would really have to try to break it. I have a mind to do a drop test Incase it ever came loose from its support, but I predict it would damage the floor!! It moves a lot of air, runs quiet, and has a versatile design. This sets the standard for a quality DIY fan. It’s offered at an exceptional price, and I doubt there are other options offered at this price point with this quality. So, if you are considering buying this to use for a mini grow room, attic ventilation, cooling, or any project that requires air flow, get it. I would go as far as to say you could use this to promote airflow in a living room. It moves a ton of air. The ONLY area that could be improved on is the plug. This is the only part of the fan that could potentially give out, however I’ve yet to see that happen. I even bent the prongs by trying to plugin the fan backwards, but after forcing it back in the right way, I got it working again. Exercise a bit of caution when plugging it in and out, and you will be set. Awesome product, would recommend. ... show more
Reviewed in the United States on January 12, 2020 by Jiang Li
    • This is an excellent, high-flow project fan-- high-quality worksmanship and durable
Size: Single 120 x 120 x 38 mm, High Speed
I bought one of these to try an experiment-- my bathroom doesn't have an exhaust fan; could I create one that could be automated? First off, the fan is substantial-- that is a metal housing, with a metal grating (reversible), and solid household 110 lead (which is socketed at the fan, also). The fan fits well in a small window I have in that bathroom, and I was able to run the wire to a software-controllable smart outlet, and integrate the fan into scenes and verbal commands. I was also able to set up a rule to turn the fan off automatically after 30 minutes. The only two downmarks I have for the fan are that 1) it comes with only one grill-- meaning one side of the fan is going to be exposed and it WILL damage your fingers, 2) it's quite audible-- not hugely loud like a jet engine, but it's a high volume fan in a small form factor. You might want to think twice if you're planning on sleeping next to it. By contrast, I looked for vendors in China that might supply a similar fan. I did find an almost-identical seeming product and ordered a couple, but unfortunately, they are much closer to PC case fans-- 100% plastic, no reversible/removable grill, and while rated for 110, they provide fairly short, very thin leads that are embedded on the fan side. There wasn't that much of a cost difference. ... show more
Reviewed in the United States on July 20, 2019 by Fletcher
    • Good air flow
Size: Single 120 x 120 x 38 mm, High Speed
The fan pushes a lot of air for this size fan. You can feel the breeze a few feet away. It is loud for its size, louder than bigger fans I have. I can hear this fan running from another room. Although the noise is easy to block out. I was running the fan outside of a cabinet, inside it would likely be quieter. The case around the fan is aluminum but the fan blade is plastic. The fan is symetrical, you can mount either way. They put a white sticker on the outside end of the fan center, so you see white rather than black. It does not appear to be easy to remove either. Fan sticker says made in China. Overall it is great, just a little loud for this size fan. ... show more
Reviewed in the United States on December 4, 2015 by Derek
    • Sweet little Muffin
Size: Single 120 x 120 x 38 mm, High Speed
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… 😅 ... show more
Reviewed in the United States on February 7, 2025 by DHM
    • 24/7 for 5 Years!
Size: Single 120 x 120 x 38 mm, High Speed
Review Image by JATOAV8OR
Review Image by JATOAV8OR
Review Image by JATOAV8OR
Review Image by JATOAV8OR
Review Image by JATOAV8OR
Review Image by JATOAV8OR
Review Image by JATOAV8OR
Review Image by JATOAV8OR
11-2022 update— I’ve used various models of AC infinity fans for cooling audio systems and video streaming cubes and even to vent a greenhouse. Most recently I’m using a 120v fan to cool a 1000 watt gro light ballast. I have some that have been running constantly for over 5 years exposed to the elements! None have yet failed!———————— Original review These are high speed high output fans and make more noise than one designed for cooling a home theater amp. These fans have run non stop outside on my dogs potty room since April of 2018 and cooling my digital ballast for a year. It’s now Oct. 2020 & both are still going strong . It’s run thru summer heat and dead of winter cold.The fan cooling the ballast is on a timer to only run when the gro lights are on.I also have a pair of ac infinity 5v usb fans on my home theater sound system & on my heavily used router, those also have run nonstop quietly over for two years. —- original review—- I was surprised by the big output of this little fan. At 110 cfm it’s comparable to many bathroom exhaust fans. The frame is sturdy cast aluminum. The highly pitched blades are shatter resistant plastic. The power cord attaches very secure & seems unlikely to come loose. I installed this fan to vent a 6x8 building and it’s doing the job perfectly running 24 hours a day 7 days a week. It’s been on that schedule for two years & still performs like new. Smooth & quiet. Overall I’m more than pleased with the performance and quality of this product not to mention the value. ... show more
Reviewed in the United States on April 30, 2018 by JATOAV8OR
    • Good choice
Size: Single 120 x 120 x 38 mm, High Speed
High quality. Works as it should
Reviewed in the United States on June 28, 2026 by Martin Miller
    • Hf Amp
Size: Single 120 x 120 x 38 mm, High Speed
I slapped this bad boy in a HF amplifier to keep to tubes cool, barely fit and it's kinda loud but I like it. Pushes plenty of air and the massive RF doesn't bother it at all. 10/10
Reviewed in the United States on July 17, 2026 by Review lord

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