Search  for anything...
AmRunJe

4X 120mm Server Rack Fan with Speed Controller Big Airflow 110V 120V 220V 240V DIY AC Fans for Mining Rig, Crawlspace, Basement, Refrigerator, Greenhouse Cooling

  • Based on 153 reviews
Condition: New
Checking for the best price...
$56.79 Why this price?

Buy Now, Pay Later

As low as $9.47 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Nov 16
Order within 8 hours and 49 minutes
Available payment plans shown during checkout

Recently Viewed

Style: 120x25mm x4


Features

  • Thin Window Fan APPLICATION: Maximize Airflow with 120mm Fans, this mini window fan is very versatile and consume less energy, perfect for Cabinets, Server rack, Chassis, Plant, Mushroom Growing, Ice Fishing Shack, Chicken Coop, Generator Box and more
  • Variable Speed Control: Small exhaust fan offers variable speed control for personalized cooling. It runs on AC power with versatile voltage options (110V-240V), fitting various regions. The cooling fan control governor is ideal for hard-to-reach spots, simplifying speed adjustments without unplugging. | Input: 100V-240V 50/60Hz Output: DC 3-12V 2A |
  • Small Ventilation Fan: The fan features durable plastic and easy setup, reversible for DIY ventilation. It offers exhaust and intake for cooling stuffy spaces. This sturdy, adaptable fan is perfect for keeping your home cool and ventilated
  • Dual-Ball Bearing: Brushless motors ensure a 50,000 hours lifespan for 24/7, allowing the fan to be positioned flat or upright with a wider heat dissipation area for maximum convenience
  • PARAMETER of Computer Fan with AC Plug: 480 x 120 x 25mm ( 18.88 x 4.72 x 1in. ) | Rated Voltage/ Current: 12V 0.45A | Airflow: 108CFM | Speed: 3000RPM | Air Pressure (in H2O): 0.2 | Noise Level: 42 dBA ( All at full speed )

Product Dimensions: 4.72"L x 0.98"W x 18.88"H


Brand: AmRunJe


Power Connector Type: ac plug


Voltage: 110 Volts


Wattage: 7.2 watts


Cooling Method: Air


Compatible Devices: Xboxs, CPUs, GPUs, PlayStations, Rokus, TVs, receivers, modems, routers, DVRs, network appliances, DIY aquarium cooling, miners, attics, kitchens, cabinets, GPU mining rigs, racks, AV equipment, servers, workstations, computers, greenhouses, mushroom growing, freeze dryers, vent tents, terrariums, gaming consoles/devices, plant growing, ice fishing shacks, chicken coops, generator boxes, garages, compressors, engines See more


Noise Level: 42 Decibels


Material: Plastic


Maximum Rotational Speed: 2500 RPM


Product Dimensions ‏ : ‎ 4.72 x 0.98 x 18.88 inches; 2.85 Pounds


Date First Available ‏ : ‎ November 17, 2023


Manufacturer ‏ : ‎ AmRunJe


Best Sellers Rank: #251 in Computer Case Fans


Customer Reviews: 4.7 4.7 out of 5 stars 153 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 16

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Multiple options
Style: 120x25mm x3
Working well, what made me buy was all the options: #1 was the ability to choose the height of the unit, +++. #2 was the configurations and size of the fans. #3 was the speed controller.
Reviewed in the United States on August 7, 2025 by Michael V.
    • Drummer cage cooler!
Style: 120x25mm x1
Purchased this tiny fan to install into a DRUM cage that I built. It works like a charm to keep me cool. Everyone is amazed at how this tiny fan puts out so much cool air.
Reviewed in the United States on June 20, 2025 by Momma Yoder
    • Love the adjustable speed
Style: 120x25mm x1
Love the adjustable speed. I use it for my kegerator and fermentation chamber to keep a constant temp so the compressor will not have to work as hard
Reviewed in the United States on August 2, 2025 by Great product. Compact ant light. Fits in my tent bag easily.
    • Good buy
Style: 120x25mm x3
Why did you pick this product vs others?: Easy to use and works good for my karaoke machine
Reviewed in the United States on July 10, 2025 by arnel
    • It's not for room ventilation
Style: 120x25mm x3
It doesn't seem to move as much air as one would think. I was hoping it would work as a window fan. If you're buying it to help move some air around your house, don't. I don't know what this is for, but it's not for room ventilation. I won't give it a bad rating, as I think it's just fine in it's build. But if you are looking for a window fan, don't buy this. ... show more
Reviewed in the United States on May 30, 2025 by Walter Sharrow
    • 120mm fan
Style: 120x25mm x1
The fan works great and has a lot of power for its size. Just don't expect a 3000 rpm fan to be quiet.
Reviewed in the United States on May 11, 2025 by John Henson
    • screwed
Style: 120x25mm x4
I am a fan. The parts could mate together a little better since that is the value-added.
Reviewed in the United States on March 24, 2025 by dave
    • replacement is easy
Style: 120x25mm x1
This product was as described.
Reviewed in the United States on June 20, 2025 by Neal Schoeller

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...