Wathai 80mm x 38mm High Static Pressure Fan 12V 4 Pin Dual Ball PWM 8038 High CFM for PC CPU Cooler GPU Server Computerc Case Cooling

I got these to replace my aging bronze bushed 80mm exhaust fans, my case uses 4 80mm fans for exhaust.These things move a ton of air, they seem well made.They are loud, i already knew this, i could care less about having a silent case.I ran them for a short time at 100%, was like an SR71 Blackbird spooling up for take off and stuff began blowing around the wall.They create a lot of air pressure.Presently running them at 30% until the case temps climb up

I have a Dell 7060 MT I7-8700 (mid-tower) desktop I recently purchased and upgraded. One of those upgrades was to replace the original case fan with this fan. So a couple of things to consider. The original fan was 12V / .36A and rated at 40 CFM, and was whisper quiet. This fan is 12v / .45A and rated at 65CFM and is not whisper quiet, but is not in my subjective opinion very loud.In fact I like being able to hear it because I know it's working and have no false sense of security. I should add that I have been in IT for many years and am therefore innately suspicious of electronics in general. But I digress.So here's my end game - this fan generates way more air flow that the original. It spins at a much faster RPM and has almost 3 times the number of blades. Hence its relative noise to the original. I could barely feel the air from the old fan with my hand, but this fan's air flow is way more than the difference in the specs would indicate. My internal 512GB SSD (Win 10 Pro drive) dropped 5 degrees F and my 3T HHD (data drive) dropped 7. Well worth a little additional background noise because heat is a common killer of any type of drive.In addition to having the same DCV rating of 12 it's also important to use a replacement fan that has the same or lower current rating. A little higher difference is ok in *most* cases, again depending on a number of system variables. So to be absolutely safe use a fan with the same DCV and an amp (A) rating the same or less. In my case new fan's .45A was close enough to the old of .36A to not matter.Installation was easy as far as the new fan goes. Getting out the old fan was a pain in my case (no pun intended). However, I did have to trim off a piece of the new fan's 4-pin connector on its backside in order for it to fit into the socket on the motherboard. You may, or, may not, have to do that. Good luck!

I wanted to beef up my Optiplex 7010 to the highest performance possible so I swapped out the i5 CPU for an i7-3770K, which I read is the fastest CPU available for the LGA1155 socket. I also maxed out the memory to 32GB CL9 and added an NVIDIA GeForce GT 1030 graphics card. I figured these upgrades would generate more heat so I wanted to increase the air flow as well. The stock Foxconn fan pushes 45cfm of air, so this Wathai fan caught my notice because it’s rated at 65cfm yet is almost the same dimensions. I say “almost” because, although the width and height are the same (80mm x 80mm), it is 5mm deeper than the stock fan, and there is very little extra space in those Dell SFF cases.Well the good news is I was able to squeeze it in…just. I was even able to reuse the stock rubber fan mounts. Also, the thing is so quiet I can’t hear it running.Now for the bad news. First, the power connector doesn’t match the socket on the motherboard so I had to use an adapter cable like the Fosa 5Pin to 4Pin Fan Adapter Converter Extension Cable for DELL Dedicated Fans. Second, this is a PWM fan, which the motherboard doesn’t recognize so on boot up it triggers a “case fan is not running” error even though the fan is spinning just fine. Pressing F1 gets me past the error so I figured that is an acceptable tradeoff for the additional airflow. It is now installed and running and keeping the CPU at a very acceptable 40-45 degrees celsius.

If you need a fan to blow lots of air and don't care about the noise, look no further. It works great. It's not the rush of air that is so annoying though, but the double ball bearings make a loud harmonic wine, even at low speed. It's a trade off and something you want to think about before deciding. I realized I couldn't live with the noise after a few minutes, but that's just me. Maybe you're deaf or maybe you're used to the sound of a jet engine in your living room, then you're golden. Maybe you want to put it into your wife's computer as a joke. But if you reside in hell, I think it's perfect. It will keep your CPU cool no matter how hot it gets down there.

Fits perfect, great airflow, but this one fan is almost louder than any datacenter i've been in

I am using a pair of these fan in a small 8-Bay NAS case. The original fans were unable to move enough are to keep the eight drives at a reasonable operating temperature. These fans do not have that problem as they have way more airflow than required for this task. I have them set to 20% speed and they are doing a great job. They are a bit more noisy than the original fans, but that's the side effect of moving more air.If you need some fans to move a lot of air through a restricted case, these will get the job done for you.Very happy with purchase.

I picked one of these up for a sleeper build and I was blown away. These have the perfect sound level without being able to be picked up by my desktop mic. All I had to do was set the fan to be controlled by TPM in the UEFI on my motherboard. Otherwise the fan would be too loud. Better than the Delta server fans a friend of mine picked up a few years ago in an attempt to make the loudest desktop possible (without disturbing neighbors). Those were too loud and not TPM-controllable.

used this to replace the failed fans on my mini doge miner machine. working good so far.