Wathai 4 Pin 80mm PC Computer Case Fan 12V High CFM Big Aflow DIY Cooling

This fan can really push some air. I mainly used it for some ESP32 projects and to show how PWM works, and this fan worked perfectly for it. If you're looking for something quiet, this is not that fan. In addition to pushing out a lot of air, it is loud. As to the speed control, if you set up a PWM signal to it, then you're good to adjust to your hearts desire. 12 VDC power supply is easy to deal with, and comes with the hardware kit to put the grates over it so you don't hit your fingers on it or other things. Overall, I am very pleased with the fan for the price is cost.

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!

Noise at full tilt is a bit droney. At lower speeds it's not as bad as the fan I replaced. I did not use this in a computer application. I used this as a fan for a electronics device that needed a good amount of air flow. I tried in of those quiet fans and altho it was quiet it did not move enough air. So I took this fan and put a 50 ohm resistor in series to slow it down a bit. Noise was acceptable and still moved enough air. So it's not a bad fan. I just had a difficult criteria to meet using this fan but found an acceptable solution.

I bought this as a cheap fan to pair with my Noctua as my motherboard takes four-pin connector and with the exception of that Noctua all I have are 3-pin 80mm fans. The Noctua came with some adaptors, including a splitter and noise reducer. When I first fired this baby up when it was connected to the splitter with my Noctua, it was louder than a jet engine. I ended up hooking the noise reducer between it and the splitter and it quieted right down. Even with the noise reducer, it has great airflow. It was after I set it up that I went back to the product page to realize it's a server fan. Explained the noise and the fact it was cheap. It's actually a good fan, it was my fault for not paying attention about it being more for servers than normal desktop PCs. So yeah, five stars due it it's ability to keep my PC cool.

These 80mm fans are no joke. I got them because of the high static pressure, and they deliver. I am using them in a 3D printer as exhaust fans and needed something strong to push through the filters. I coupled them with a variable speed controller. The price is great and makes these a good value. They seem well built and the bearings are smooth. They do get fairly loud @ 100% but that is to be expected.

I put these in a server to replace some of the old 80mm fans. They're definitely loud, but that's what I expect from something this small, that moves this much air. Good price for the amount of air it's moving.

With a PWM duty cycle of 100% I'm getting about 4750 RPM. But, unlike other case fans I've tried, you cannot turn it off by setting the PWM duty cycle to 0%. In other words, it's a Type A fan (per the Intel specs for PWM fans). At 0%, mine idles at 2880 RPM, which is a bit higher than the minimum speed advertised. It's nice that it comes with a safety grill, since it does not have rotor lock protection. It seems well made. Noise is lower than you might expect for the speed, but at its 2880 RPM idle speed, it's (not surprisingly) a bit louder than other fans that run at, say, 1800. If you need a really fast fan with some speed control, it seems like a reasonable choice. But if you're hoping to slow it way down to keep it quiet, this isn't the fan you're looking for.

loose connector wire, but good now

Installed in RackChoice 2U micro ATX server rack. Noisy, but less than my HP Proliant DL380P. Very good airflow.

冷却能力は高いですが、若干風切り音が気になります。商品としては十分機能しています。静かな部屋での使用には向かないですね。

50%越えるとケース内から、「ウィーン」と聞こえますが風量はかなりあります。 ケース内の冷却したいデバイスにピンポイント設定し、指定温度で一気に廃熱したり空冷目的で使う設定すると効果抜群です。

順調に回転してるので安心です。