Wathai 4Pin PWM DC 12V 80mm High CFM Fan 12 Volt high Static Pressure Fan

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 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.

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。