4 Pin 12V PWM Fan Controller with Type C USB Power Cable and 4Pin 5 Way PWM Fan Splitter Hub,PWM Fan Speed Controller with 15-18W, 1.2-1.5A Output, 5V Input

Nifty little PWM fan controller for DIY projects! I wish the seller offered an upgraded version of this to accommodate 8+ fans using a single controller. Overall, happy with the product and will buy again for future DIY projects.

Works for my PC fan dehumidifiers. Output voltage sensitive to power adapter

Works well enough, but they covered the LED power indicator light that comes on when you turn the fan on with the knob. I really would have liked seeing that light. You can see it's lit if you peer in from the USB plug.I'll eventually tear it apart and 3D print a new enclosure for it so that I can see the light.

I have more fans on the 3D printer controller than I have fan ports on the circuit board. If I use a simple splitter cable, they all run at top speed, making them very noisy. The PWM fan controller is a great solution. It allows me to connect 5 fans, and control the speed so I can run them fast enough to cool everything sufficiently, and slowly enough to run quietly.A 10 w USB power supply is enough for all 5 fans if you need that many. The fan controller is compact and easy to keep out of the way of the other electronics. The power cable and header for 5 fans are both included. Note that the pwm signal applies to all the fans, so if the fans have different speed ranges they will not all run at the same speed. Use matched fans for best results.

So I'm a kinda guy to use things regardless of their intended purpose. This little controller opens up new horizons of possibilities for that box of old computer fans you might have knocking around. If you have an underprovisioned mother board or a mining rig that you want to control the fan speed on easily this little guy is exactly what you need. Im really impressed by the overall quality and small footprint of the controller, and I like that adjusting speed/airflow is as easy as turning a knob. If you know how to plug in a USB cable and PC fans, you are fully capable of installing this. The kit came with adhesive strips too which was appreciated. The price point might seem a little high, but for the overall quality I would gladly pay it. The kit recommends a 10A capable power supply, but it is largely dependent on the size and number of fans you are running. My application was setting up a ventillation system for my frog tank to adjust humidity on the fly via smart plugs and trigger points. It worked flawlessly. I will probably order up a second one to use as a ventillation system for my 3d printer enclosure as well.

This fan speed controller comes with a 5 4-wire fan break-out board so that in theory it can run 5 4-wire fans off of 1 usbc input. So much promise.I connected this to a 12v 1.5a 4-wire fan (that pulls 1.3a) , and it could run at low speeds, at "full" speed it ran the fan at about 60% for 5 seconds, then started turning on and off, because of overload. Granted, the fan uses as much power as 3 normal fans. When I ran an arctic .34A 4-wire fan (that pulls .32a), it ran at full speed. So while it will control a small fan, it isn't able to drive larger loads, and it certinly won't drive 5 fans unless they are tiny.There is a good value for controlling a single fan, but the build quality prevents the 5 fan "fan-out" can actually turning this into a 5 fan controller one might use to cool a computer.

Works great to power 12v fans from usb c easy to use and control fan speed

I mainly use this outside of my PC through USB-C power, but is able to run off of your PC motherboard through the CPU header (though any PWM header should do. This can be controlled through your motherboard fan settings with the appropriate PWM connection selected.)The components are light, but feel durable. The speed pot has a satisfying click when turning on/off and very light, but smooth, resistance throughout. The output is very power source dependent. Make sure your power source can handle the load your fan setup needs before hard mounting it for more permanent setups. Fans may pulse on/off if there isn't sufficient power.Overall, this is neat and if you're looking for something to use your leftover PC fans for, this is a great way to add cooling to a desk or entertainment center for stowed electronics.