4 Pin 12V PWM Fan Controller 6 Fans Supported , PC Fan Adapter Hub Powered by SATA and DC 5525, Cooling Fan Speed Knob with Max Total 60W 5A Output

Simple and highly effective fan controller.I use this to run 6 fans, 4 120mm and 2 60mm 4 pin fans.If you wish, you can run the setup using a 5v adapter but your fans won't spin as fast as they would with a 12v adapter of course.The center pin of the round plug is a 5.5x2.5mm so plan accordingly if you are going to use an ac adapter like I did.The plastic back plate is just a 3d printed cover so you can remove that if you wish to create a different case for the controller.The knob turns smooth and clean with no notchy feel to it.Overall, this is a great value for a variable fan controller for your 3 or 4 pin fans.

This 4 Pin 12V PWM Fan Controller is an excellent tool for managing multiple fans effectively! Supporting up to 6 fans, it provides precise control over fan speeds, keeping my system cool and quiet. The powered design via SATA and DC 5525 makes installation super easy and versatile. The cooling fan speed knob is smooth and responsive, and the maximum output of 60W/5A ensures reliable performance. Overall, a fantastic purchase that improves my PC’s cooling and noise management—highly recommended!

Works perfect for my needs. Converted Mac Pro 3,1 (original 120mm fans).

Garbage. Control knob doesn't change fan speeds AT ALL! No matter what, the fans run at full speed. Even if you turn it all the way down to low.The one job this controller has, it fails at. One star. Returning it.Also, the case is 3D printed and of absolutely horrendous quality.I'm running a bunch of enterprise GPUs on a mining frame that needed fan shrouds and external fans. They are INCREDIBLY LOUD! So I got this to control the fan speeds, and it doesn't work. I'll probably just build something custom with an Arduino.

This is an excellent PWM fan controller. I use it with an external power supply to power three 360mm fans for an external liquid cooling radiator, which is something like I imagine most people will be doing. It puts out just enough juice and could handle more fans than I'm using with no problem. There are six slots for direct fan connections, if you need more than that then you'll need to use splitters or use a different distributor. The power light is not too obtrusive but then I keep this set behind my PC so it's not easily visible. The dial is very sturdy and has a good feel to it, I imagine it should have a long life of usefulness. It's got SATA powered options as well if you want to set this somewhere inside your case or else get a good long extender.I pulled exactly one star away for one simple reason: it would be nice to have a power switch. The lowest setting on the dial doesn't completely power the fans off, so if you use a wall wart power supply like I do you may want to set something up to switch it off when necessary. The plastic case that the board sits in is 3D printed, and does look the part, but thankfully, most of it is on the underside so you aren't likely to look at it much.

I have an open frame server for ai research and this was a perfect option to control my gpu fans (server gpus don't have their own fans).This is a simple, classic, and cheap 555 timer based pwm generator. That's all you need though. I appreciate having the voice of using a barrel jack or sata power connector for the 12V supply. Speed range is good.

Does exactly what it says. I am using it to run my Bentobox fans and a high CFM 60 mm screamer and it keeps both under control without any weird PWM whining or flicker. The header layout is simple, everything plugs in clean, and it responds instantly to speed changes.You will need your own 12 volt power brick but those are everywhere. Once it is wired up it just works.

Probably works with 4pin fans. I didn't read enough and it doesn't work with my 3 pin fans

Had a specialized motherboard with only cpu fan headers that needed extra cooling. This worked perfectly well to fine tune airflow with noise level.

Fan speed doesn't change