Wderair Server Rack Mount Fan Review

I recently purchased the Wderair 4 x 120mm Server Rack Mount Fan and have been using it for a few weeks now. I wanted to share my experience with this product and provide you with an honest review. Whether you’re looking for a cooling solution for your DIY mining rig, AV cabinet, home theater, refrigerator, or greenhouse, this fan offers a versatile and efficient option.

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Pros and Cons

What We Liked

  1. Excellent quality: The fan has been working flawlessly since I installed it on my RV’s refrigerator to keep it cool.
  2. Effective cooling: I use this fan to prevent my receiver/amp from overheating, especially during high-volume music or movie sessions. It helps to prevent self-shutdown due to excessive heat.
  3. Variable speed control: The AC to DC 12V speed controller allows you to adjust the fan speed according to your requirements. It is easy to install and works well.
  4. Versatile applications: This fan can be used for various purposes, such as a replacement window fan or in a martha tent for drying or venting purposes. Its wide range of applications makes it a versatile cooling solution.
  5. Good airflow even at low speeds: Even at lower speeds, these fans provide sufficient airflow to keep your equipment cool. They don’t produce significant noise, making them suitable for use in AV cabinets.

What Can Be Improved

  1. Noisy at full speed: When the fan is running at maximum speed, it can be quite noisy. However, this is common with most rack fans that prioritize airflow over lower noise levels.
  2. Ball bearing noise at the lowest speed: Some users have reported a ball bearing noise at the lowest speed setting, which can be bothersome. However, this may not affect everyone’s experience.

Quick Verdict

The Wderair 4 x 120mm Server Rack Mount Fan is a reliable and versatile cooling solution for a wide range of applications. It offers excellent quality and effective cooling, making it a suitable choice for DIY mining rigs, AV cabinets, home theaters, refrigerators, and greenhouses. The variable speed control allows you to customize the fan’s performance according to your needs. While it can be noisy at full speed and may have some ball bearing noise at the lowest speed, considering its performance and versatility, this fan is definitely worth considering for your cooling needs. You can find more information about the product and make a purchase here.

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Unboxing – What’s Inside?

I recently purchased the Wderair 4 x 120mm Server Rack Mount Fan 12V with 100V – 240V AC Power Variable Speed Control from Amazon. Living in the USA, I was excited to enhance the cooling performance of my DIY mining rig, which had been struggling in the summer heat. I ordered the product on September 5th and was pleasantly surprised when it arrived just 3 days later, on September 8th.

Opening the box, I found the following items:

  • 4 x 120mm Server Rack Mount Fans
  • Power variable speed control


This Wderair server rack mount fan is packed with impressive specifications, including:

  • Air Flow Capacity: 45 Cubic Feet Per Minute
  • Maximum Rotational Speed: 3000 RPM
  • Material: Plastic
  • Noise Level: 37 dB
  • Compatible Devices: Server
  • Cooling Method: Air
  • Voltage: 12 Volts
  • Power Connector Type: 2-Pin
  • Brand: WDERAIR
  • Item Dimensions LxWxH: 18.9 x 4.72 x 1 inches
  • Manufacturer: WDERAIR
  • Date First Available: September 21, 2022
  • Item model number: 12025B12Vx4-control
  • Product Dimensions: 18.9 x 4.72 x 1 inches; 1.98 Pounds


The documentation provided with the Wderair server rack mount fan was quite helpful. It clearly explained the installation process and how to use the power variable speed control effectively. The user guide also provided important safety information and maintenance tips.

If you want to check out the user guide yourself, you can find it here.

Features – What We Found

High Airflow for Various Applications

The Wderair 4 x 120mm Server Rack Mount Fan is designed to provide high airflow for a wide range of applications. Whether you need cooling for your GPU mining rig, router, rack receivers, AV equipment, computer pc case, or even in a greenhouse or refrigerator, this fan has got you covered. Its powerful airflow ensures efficient cooling, keeping your equipment and surroundings at the optimal temperature.

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Pro Tip: When using the fans, you have the flexibility to use them in pairs or all four together. This allows you to customize the airflow according to your specific needs, whether it’s for a push-pull configuration or increased cooling in a larger space.

Variable Speed Control for Precise Cooling

With the included AC to DC 12V Speed controller, you have full control over the fan’s speed. The speed controller accepts a wide range of input voltages, from AC 100V to 240V, and allows you to adjust the output voltage from 3V to 12V, effectively controlling the RPM (revolutions per minute) of the fans. This feature is particularly useful when you need precise cooling for different scenarios. The variable speed control provides flexibility and ensures energy efficiency by only using the necessary fan power.

Click here to check out the product on Amazon.

Durable and Quiet Operation

The Wderair Server Rack Mount Fan is built to last, thanks to its dual ball bearings. These bearings provide excellent durability and longevity, ensuring the fans can withstand continuous operation over extended periods. Additionally, the fan operates quietly, with noise levels ranging from 22 to 37 dBA, allowing for a peaceful and distraction-free environment. This makes it an ideal choice for applications that require both cooling and silence.

Easy Installation and Plug-and-Play Functionality

Installing the Wderair 4 x 120mm Server Rack Mount Fan is a breeze. It comes with an AC plug, making it compatible with standard electrical outlets. Simply plug it in, and you’re good to go. The fan’s compact size of 240 x 120 x 25 mm (9.44 x 4.72 x 1 in.) allows for easy integration into various setups. Whether you’re a DIY enthusiast or a professional, the fan’s plug-and-play functionality ensures a hassle-free installation process.

Pro Tip: For optimal performance, it is recommended to clean the fan blades regularly to prevent dust build-up, which can impede airflow and reduce cooling efficiency. This simple maintenance task can significantly prolong the fan’s lifespan and ensure consistent performance.

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One-Year Quality Assurance

Wderair stands behind the quality of their product. The Wderair 4 x 120mm Server Rack Mount Fan comes with a one-year quality assurance warranty. In the unlikely event that you encounter any quality issues with the fan within the first year of purchase, you can contact the company for a replacement. This warranty provides peace of mind and demonstrates the brand’s commitment to customer satisfaction.

Our Review and More

Our Score: 93.0

I recently purchased the Wderair 4 x 120mm Server Rack Mount Fan and I have to say, I am extremely happy with my purchase. This fan has exceeded my expectations in terms of quality and performance. It has been a great addition to my DIY cooling setup for my mining rig and other electronics.

The airflow generated by these fans is exceptional. Even at low speeds, the airflow is sufficient to keep my equipment cool and prevent any overheating issues. I especially appreciate the variable speed control, which allows me to adjust the fan speed based on my specific cooling needs. The AC plug makes it convenient to use in various setups, and the installation was a breeze.

What sets this fan apart from others is its versatility. Not only does it work perfectly for my mining rig and AV cabinets, but I also use it in my home theater, refrigerator, and greenhouse. The noise level at higher speeds might be a bit noticeable, but considering the airflow it provides, it is a minor inconvenience.

I highly recommend the Wderair 4 x 120mm Server Rack Mount Fan to anyone in need of a reliable and powerful cooling solution. Its performance, features, and durability make it a great investment. Don’t miss out on the opportunity to enhance the cooling efficiency of your equipment with this fantastic fan. Check it out here.