Wathai 12038 120mm x 38mm PWM Computer PC Case Fan 12V 4pin 5300rpm 230 CFM High Airflow Duall Ball CFM FG DC Brushless Cooling Fan

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

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.

Used it to repair my kids Tinleon foam machine. Fit and worked perfectly!

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.

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.

Amazing airflow from this fan. Used to replace the malfunctioning fan in a magnavox mvh2000 heater. If youre getting the infamous E1 error code its most likely due to a bad fan. E1 means the unit is overheating due to insufficient airflow. This fan moves plenty of air out 9ft in front of the heater. For this application you have to create new mounting holes and swap the connector ends. Super simple upgrade that vastly improves the heaters performance. I must add that its not loud at all. Can hardly hear the fan when right next to my head. Installed with the heater in operation the only way you know its running is the warm air and the display readout. 👍👍 To help anyone out that might be working on the mvh2000, to remove the insert from the wood housing each caster has 1 extra long screw that passes through the wood into the metal. Slide the insert out and remove the side panel. The rest is self explanatory. Unplug the heater before any service to the unit. Be safe!

No kidding around. These are fast fans. Literally sounds like my pc is about to take off down the runway. (When i first turn it on) good bearings and good hardware for mounting. Only thing is these are thick and not good for small areas.

I bought this fan, probably by mistake, for it's size, voltage (12v) and the CFM, for a special project. Only I found out that I need an additional 5v input to get it to operate.I haven't had it running yet but I assume this will do the job once I get my 12v to 5v converter.