Wathai 120mm x120 x 38mm 12V 2Pin Dual Ball 12cm Industrial Cooling Fan High Airflow

Okay, so, I've been using this thing for about a year and here are my thoughts.In order to use this, I bought a barrel-jack/fan connector and an adjustable fan controller that fits said barrel jack connector. Upon opening the box the first thing that you notice is the sheer girth of this unit. I mean, it feels much heavier than it should. The build quality is amazing and it runs like a top. at low speed its nearly silent and cools my mid-tower cpu case and heat-sink to a comfy 45c. I want whoever reads this to understand, I don't have a fan on my cpu heat-sink, this thing is connected to the front inside top of my case so as to suck fresh air in and blow it. It blows enough air, from that position to not only cool my heat-sink on its LOWEST setting but to also hit the fan in the back of the case. On medium, the fan sounds like what I imagine a duck hitting a airplanes turbine hears before it becomes meat shrapnel. It's just, Incredibly loud. Like, you can hear it 30+ feet away at half speed. The cooling performance though, matches the noise. I'm able to drop from 71c post Vulcan shader render to 42c in 20 seconds at half speed. Now comes the complicated part. Depending on the heatsink you use, There's little to no point in using this thing past half speed. Let me explain. The heatink can only throw so much heat, and this fan moves air so fast, after half speed, it reaches a point where it just doesn't remove any more. I am able to hold a paper towel to a wall at 3 feet from the back of my case at the fans full speed though lmao. Bottom line is, It's stupid, overkill, and I'm in love, buy three. Just don't forget the adapter and external fan controller, this may kill your power supply.

First of all, they can be very very loud if set to the highest level of speed. This is exactly what I wanted to replace the jet flow fan cases I got originally for my pc many many years ago. You can adjust the speed using the fan control in bios or any other fan control program. I have mine set to manual because trust me if I have it set to cpu temp it sounds like it will take off...lol. Anyway, I can feel the air move and it doing much much better than any regular cpu fan. These are server fans and they can move the air. I think the manufacturers setting is off because I think it moves more than they say. Which is great for me and i have them set at 35% in the front and 45% in the back and the sound is okay. I am very very happy with my purchase. I might end up ordering one more but for now these are fine

This is way better than a factory exhaust fan because it has PWM control. You can adjust fan speeds with CPU temperature or other temperature indicators in BIOS. It is a little noisy but not too much for me. I think its worth it, keeping the components cooler over a long time helps your computer components last longer.

I purchased the Wathai 120mm x120 x 38mm 12V 2Pin Dual Ball 12cm Industrial Cooling Fan High AirflowIt is an amazing Fan, Extremely powerful. I needed a more-than-usual powerful 12mm Fan, and this one is great.4 STARS RATING BECAUSE:I rated 4 stars ONLY because the 2 pin conector (white plastic) has a "2 arrows" plastic lip/protruding the plastic surface that is not a common connection for Computers, so I had to cut it carefully making the surface flat.It should have a standard protruding safe-lock as other connectors, making it easier and more secure to connect and avoid a loose connection.Since I had to cut it (very carefully), I secured with gaffer tape the female connection at the end of the cable to the male connector from the extension cable that I used to connect to the computer, to avoid any risk of accidental disconnection.NOISE: since it's very powerful fan, you can't expect to be quiet using it at 100%. I have more quieter 12mm fans, but less powerful by far.This one is rated at 125CFM and compared to my 110CFM (that was noticeable quieter) it pushes LOT more airflow. So for my purpose I stored the quieter one and used this one instead.Since I use it for computer and it pushes so much air, I use an air filter, to avoid so much dust getting inside the case. Essential to me. There are many cheap plastic grills that include foam filters that can be easily unmounted and washed periodically (if it can be accessed from outside)SUMMARY: Great Powerful Fan.

Good quality very powerful for its size!

Okay, so this thing is a monster, it's beefy, built ferd tough. It moves a ridiculous amount of air. It actually kinda scares me. It's loud as hell. I bought it cause I needed to overcome a ton of static pressure, since I have a positive pressure configuration for my computer, and well, it definitely overcomes that, but I might need something slightly more quiet.But dang does this thing work good. If you need a monster to move a ton of air, this is it right here.Also I gotta buy a new fan controller hub cause I broke my cheapo one, and well, the fan runs at full tilt. But it's PWM so once I get a working hub, it should actually ramp up and down correctly.

The media could not be loaded. I built my pc with the purpose of it being a video editing/rendering system, so I stuffed in 2 GPUs, a Ryzen 7 with water cooling and 64 Gb of ram respectively. But overlooked the thermals and wondering why I was getting around 90c after a few hours. Figured out it was the front fans the AIO came with, so I swapped those puny little fans for 2 of these 5300 RPM big boy fans, and when I turn these fans up, the CPU will never go above 72c no matter how hard my computer tries. Not only do these fans push a ridiculous amount of air, they also give you a nice little audio cue to when they are working the hardest. They can also be extremely quiet when ran at lower speeds, only slightly louder than a regular case fan. Granted, they do sound like a hair dryer or a jet engine when they are at full power, but did a little noise ever hurt anyone? 100% recommend these fans to anyone who would like ice cold thermals and isn't bothered by a bit of noise.