3.14" Fan 12V

using this with a temp sensor to keep a inverter and Lithium battery compartment cooled. I'm pulling air from a AC area and forcing into a compartment below. I was concerned about volume of air and noise level. The amount of air is incredible and it's louder than what I had in it but not really that bad. It's a thicker fan so I guess how they get the CFM that I needed. I've ordered a second one along with the duct work w flange. Also it only pulls 1 amp. It's under the bed and if it's quite in RV you can hear it but it won't be enough to cause a issue. I comes with 4 wires on a connection that I was able to pop out the red and black and slide into a connecter that was used with other fan. It comes with two fan covers which is usually extra. I wish it came with the connection that would plug into connection on fan

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.

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 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!

The fan works, but I'm skeptical. When running on high speed it is very noisy. Even at low speed, it pulsates almost like a cricket chirping. My guess is the bearing will not last.

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.

Very quiet. Perfect fit.

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

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

Works perfectly for my Asus motherboard. Not sure what other reviews are talking about the connection not working. Yes they are loud at 100% duty cycle. But if you know what your doing, they will cool a mining card at 50% duty cycle no problem! Highly recommend.

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。

This is a high speed, extremely noisy fan, but if you download fan control, it makes it so you can control the RPMs until you hit high temperatures.This fan will cool any CPU for sure.