Noctua NA-FC1, 4-Pin PWM Fan Controller (Black)

I split 3 iPPC PWM 2000 RPM fans (two 140mm, one 120mm) into this speed module. I love the iPPC fans due to their rugged reliability and look in my Corsair 4000D case, and this speed control module allowed me to turn down the fan RPMs without sacrificing cooling performance. The noise level decreased significantly! I am SO happy with Noctua and their products.

Another 5 star Noctua item.I bought this originally to control fans, but I ended up using to control my water pump. For water pumps especially, the "no stop" feature is awesome. I wish this unit was a little less expensive. I also wish it makes coffee and brings me breakfast in bed. Either way, it is not going to happen with Noctua. If you are new to Noctua, their thing is quality, not pricing. If that is your thing, buy it. If not, move on.The unit is well built and the performance is excellent. It is just the right size to stick it somewhere accessible yet unobtrusive in your build. I mounted mine just to the left of my radiator. I only need to adjust the pump (or the fans it was meant to control) very occasionally. If you have a mobo that does not have sufficient PWM headers, this product is ideal. Even if you do have enough PWM headers. this product does a better job at super low speeds than most motherboards UEFI/BIOS. It is a must for filling water loops as you don't want it to start off at full speed. That would introduce unwanted air bubbles and that is exactly how most motherboards behave at start up, regardless of your BIOS settings.Update: Mine stopped working. I suspect it is the cable not the unit itself. I will update again if I try to contact Noctua to correct the issue and their response is inadequate, but I don't think that will happen.

I created a system to provide cooling for an AV cabinet in a closet. Components include Aventage, Emotiva and Oppo. The cooling equipment used includes:1. Noctua Fans (3) (model# NF-S12A PWM)2. Noctua Fan controller (model# NA-FC1)3. Noctua Extension cables (model# NA-SEC1)4. Cablemod's molex to SATA cable (model# CM-CAB-MSAP 45KK-R)5. Coolerguys AC power adaptor (110V AC to DC 12V Power Supply with 4 pin Molex)The fans are laid flat on top of the receiver and amplifier pulling air up through the units. Of course, the anti-vibration corner pieces protect the AV equipment and prevent the fans from moving around. There is approximately 4" between the top of each AV component and the shelf above. This seems to allow sufficient air circulation.All Noctua components were packaged nicely and functioned perfectly out of the box. Connections are solid. Using the fans full speed, they are very quiet and are effective in keeping the components at less than 82F degrees. The Noctua Fan Controller is tiny -- about the size of a man's thumb.When setting up the system, I reached out to Noctua for some technical assistance. They were prompt and provided excellent guidance on connecting the power supply to the speed control (Cablemod's connector).The Cablemod's cable has solid connections and functions well. The only thing that would be nice is an outer sheath to keep all four wires together for a cleaner appearance.The Coolerguys AC power adaptor appears well made and functions well to power the three fans.Overall, the system has been running for about 1 month and I am quite satisfied with each of the components and would recommend them to anyone looking for an effective cooling system for an AV cabinet.

Does exactly what it's supposed to do. Used it for a pwm d5 pump to circulate coolant loop for prep and cleaning of new loop. Pump wouldn't run full speed when powering it remotely without a pwm signal. Item solved problem. Just powered it off the same power supply I powered the pump . Not cheap but a nice tool I will be using in the future or on another build.

-One of the main reasons I love this fan controller is its compact package and ease of use. It is a little pricey for a fan controller, but it works very well and it has exceptional build quality. The dial that controls the fan speed does not wobble or feel like it's going to fall off, so I expect this controller to last a long time. It has been running for a few months now without any issues.-Although I love the NA-FC1 for the aforementioned reasons, one of my main gripes about it is the way that the fans plug into the controller. Since both plugs are on opposite ends, it is rather challenging to place the controller itself outside of my case, as the wires easily get twisted and want to bend back to their original shape. If both plugs were on the same side, then I could place the fan controller on top of my case with the fan cables extending from the drive bay.-It can handle 3 amps of current, which should be more than enough for people with normal case fans. However, I enjoy tinkering with powerful server fans, and I have had to limit which ones I buy due to the 3 ampere current limitation. 3 amps is somewhat of a middle ground; many server fans are rated for under 3 amps, although the most powerful can draw even more current that would overwhelm the NA-FC1. I have spent hours and hours combing through Amazon to try and find a PWM controller that can handle these fans that (and can be directly plugged into my computer power supply), but I have always turned up empty-handed. I am always led back to the NA-FC1 simply due to it being the highest-current PWM fan controller I can find that doesn't require any fiddling to get it working. I would love it if Noctua made a beefier version of the fan controller that could handle currents in excess of 6-7 amperes, but I don't know if Noctua (or any other company) is ever planning to make one like that in the future.