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Noctua

Noctua NA-FC1, Compact PWM 4-Pin Manual Fan Speed Controller

Based on 2,621 reviews
Condition: New
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$26.95
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Availability: In Stock.
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Arrives Oct 30 – Oct 31
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At a glance

Condition
New
Model
NA-FC1
Dimensions
0.98"L x 1.88"W x 0.82"H
Weight
48 g
Color
Black
Material
Plastic
Voltage
12 volts
In the box
1 product
Warranty
6 year manufacturer’s warranty

Features 5

  • Compact, highly flexible controller for 4-pin PWM fans
  • Works as a manual speed reducer or in tandem with the automatic motherboard fan control: achieve truly quiet operation, even with high-speed PWM fans such as Noctuas industrialPPC series
  • No stop mode: prevents the fan from falling below a speed of 300rpm in order to avoid BIOS fan errors
  • Includes a 3-way splitter cable for controlling up to 3 fans simultaneously

Description

The NA-FC1 is a compact, highly flexible controller for 4-pin PWM fans that can both work on its own for manual speed reduction and also work in tandem with the automatic motherboard fan control. By adjusting the NA-FC1’s speed control dial, users can either manually set a PWM duty cycle from 0 to 100% or reduce the PWM duty cycle supplied by PC motherboards in order to have the fans running slower than the automatic motherboard fan control would allow. While the brightness of the orange status LED provides visual feedback on the current dial setting, the push button allows the NA-FC1 to be switched into “no stop” mode, which prevents the fan from falling below a speed of 300rpm. Thanks to the supplied 3-way split cable and power supply adaptor, up to 3 fans can be controlled simultaneously. While most fan controllers are voltage based, the NA-FC1 uses the more sophisticated Pulse Width Modulation (PWM) technique that allows for more efficient control and lower minimum speeds, regardless of the fan’s starting voltage. As powering multiple higher wattage fans from a single motherboard fan header may damage the motherboard, the NA-FC1 includes an NA-AC4 adaptor that powers the device directly from the power supply unit while simultaneously receiving PWM input from the motherboard and forwarding RPM information. This makes it ideal for controlling multiple high-speed fans such as Noctua’s 3000rpm industrialPPC models. The supplied 3-way splitter cable allows the connection of up to three 4-pin PWM fans in order to control them simultaneously. Even more fans can be controlled at once when using additional NA-YC1 splitter cables that are supplied with many Noctua fans and available as an optional accessory kit (NA-SYC1). If the small push button is pressed and the green status LED is on, the NA-FC1 operates in “no stop” mode, which means that it will not allow the fan to fall below 300rpm, regardless of the speed setting and the input PWM duty cycle from the motherboard, thus avoiding BIOS fan errors. *Please note that many PWM fans have a minimum speed higher than 300rpm and as the function of “no stop” mode is to not let fans go below 300rpm, it is only useful for fans which are generally able to go below this speed. For example, a fan with 500rpm minimum speed will act the same with “no stop” mode on and off. Connector: 4-pin Voltage Range: 5-12 V Colour: black Size: 21 x 25 x 48 mm all Noctua 12V PWM and 5V PWM fans, many third party PWM fans If the NA-FC1 doesn’t receive an input PWM signal from the motherboard, it works as a simple manual controller that allows the duty cycle to be set from 0 to 100%. This makes it ideal for manually slowing down high-speed PWM fans such as Noctua’s iPPC series to achieve consistently quiet operation. Noctua's premium cooling components are internationally renowned for their superb quietness, exceptional performance and quality.

Specs 21

Color Black
Brand Noctua
Voltage 12 volts
Product Dimensions 0.98"L x 1.88"W x 0.82"H
Material Plastic
Brand Name Noctua
Item Highlight Manual PWM-Based Control via Dial, Can Be Combined with Incoming PWM Signal, Features No-Stop Mode, Can Control Up To 3 Fans
UPC 841501120244

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Oct 30 – Oct 31

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

tiny, powerful, does what it says. It's a Noctua!
Style: Single
i use this to control my PWM fans in a server cabinet. Does precisely what it says and controls my 3 cabinet fans with no trouble and the rande of the knob is wide enough to allow for rather precise speed control. THis is a genuine noctua, so not cheap, but a great value for money - no buzz, works great, and I was shocked how tiny it is - the size of a pack of chewing gums - it is super tiny! ... show more
Reviewed in the United States on July 4, 2026 by Jiri @ Archer Dynamics
Works well, only PWM controller in this form factor. Usual Noctua quality.
Style: Single
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. ... show more
Reviewed in the United States on June 21, 2019 by Aaron
Well worth it if you don't trust your BIOS PWM control.
Style: Single
This is an excellent solution if your computer's BIOS PWM control is wonky and either over drives your fans or stalls them out. It is ideal if your concern is about noise reduction because you can tune the speed directly without having to rely on the BIOS settings. All of the cabling needed to connect three 4-pin PWM case fans and a SATA power cable is included, as well as a noise reduction cable that limits top fan RPM. The greatest technical advantage to using this controller is that it separates the power supply for the fans from the motherboard connection, only using the motherboard connection to determine the speed the BIOS is asking for rather than drawing all of the power for your case fans from the motherboard. ... show more
Reviewed in the United States on March 21, 2026 by Zombie Violin
Perfect Fan controller paid with two Noctua fans
Style: Single
I purchased the Nocturnal NA-FC1, 4-pin PWM Fan Controller to use with two fans (Noctua NF-A8 5V PWM, Premium Quiet Fan with USB Power Adaptor Cable, 4-Pin, 5V Version (80mm, Brown)). The controller is extremely easy to assemble. After a couple quick connections the two fans were powered and they were ready to quietly cool my laptop. The Noctua fans were replacements for my laptop stand that came with very low preforming and noisy fans. The Noctua fans combined with the Noctua Fan controller created an incredibly efficient and almost silent replacement. The only time I hear the fans is if I increase the RPM. Increasing the RPM is extremely easy with the Fan Controller. The dial knob on the fan controller is simple to use and turning it clockwise increases the fans' RPM whereas counterclockwise decreases it. For me, the sweet spot is about halfway. This setting creates great airflow while keeping the fans almost silent. Pros: Easy to assemble Easy to use Compact Cons: Cables can be disconnected easily (if this is going inside your PC case, there's no concern) ... show more
Reviewed in the United States on October 19, 2025 by Henry
Works Well, but the Connections Could Feel More Secure
Style: Single
I’ve had very good experiences with Noctua products, and the NA-FC1 does what it’s supposed to do. The build quality is good, and I wouldn’t describe it as flimsy or delicate. That said, I found it a little pricey and somewhat fiddly to set up. My main issue is with the way the connections fit together. They work, but I would have preferred a more secure or positive connection that felt less susceptible to being pulled apart accidentally. If you’re installing it inside a computer and leaving it tucked away, this probably won’t matter at all. If it’s going to be exposed or handled occasionally, though, the design feels a little less secure than I would have liked. Overall, it works well and does exactly what it is intended to do. I’m giving it four out of five stars because the quality is good and the functionality is there, but I think the connector design could be a little more user-friendly and secure. ... show more
Reviewed in the United States on September 2, 2026 by Highway
Perfect for loud dell pc fan
Style: Single
This is perfect. I got a Dell OptiPlex 3080 for free and I’ll be damned if it’s gonna go to waste but the fan on it is so loud that I cannot stand it. I even tried swapping it for a known quieter fan and nothing worked the fan curve was just too high. This was the only solution that I could find. I just plugged it in and it worked. It was a bit big to fit inside the case, but I removed the plastic case on it and then did fit inside of my mini PC. ... show more
Reviewed in the United States on March 17, 2026 by Gavin K.
Works great with multiple types of Noctua Fans!
Style: Single
Works perfectly, as expected from Noctua. The controls are easy to use and the connections, despite feeling flimsy, are sturdy and held up over several months. The speed adjustment is super convenient and the included power supply is nice and compact.
Reviewed in the United States on April 17, 2026 by Mr. Josh
AV Cooling System Application
Style: Single
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. ... show more
Reviewed in the United States on March 28, 2019 by Amazon Customer
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