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Small black rectangular PWM fan controller with cables

Noctua

Noctua NA-FC1 4-Pin PWM Fan Controller Black

SKU CH-X6SP-YG7MC

Controls up to three 4-pin PWM fans manually or alongside motherboard automation, with a 300rpm minimum to prevent BIOS errors

  • Manual speed reduction for quieter PWM fan operation
  • Works alongside motherboard auto control for flexible tuning
  • No-stop mode keeps fans above 300 rpm to avoid BIOS errors
  • Included 3-way splitter controls up to three fans at once
  • Compact design fits easily inside any case build

Compact PWM fan controller

The Noctua NA-FC1 is a small four-pin PWM fan controller designed for builders who want precise manual speed adjustment or a supplement to automatic motherboard fan curves. It suits systems where silent operation is a priority and high-speed PWM fans need finer low-speed control.

Replaces fixed-speed or noisy fan operation

This unit replaces running fans at full voltage or relying solely on motherboard headers that may not spin down far enough. The jump is worth it when you need to eliminate fan noise at idle while keeping the safety of a 300 rpm minimum that prevents BIOS fan errors.

Fits any build with a 4-pin PWM header

The controller plugs into a standard motherboard PWM header and includes a three-way splitter cable to run up to three fans from one channel. It needs no extra power connection and frees up additional motherboard headers while keeping fan-speed reporting intact.

Highlights

  • Manual speed reduction for quieter PWM fan operation
  • Works alongside motherboard auto control for flexible tuning
  • No-stop mode keeps fans above 300 rpm to avoid BIOS errors
  • Included 3-way splitter controls up to three fans at once
  • Compact design fits easily inside any case build

Specifications

No published specifications for this item yet.

Questions about this item

How many fans can the included 3-way splitter cable connect to the NA-FC1?

The supplied 3-way splitter lets you control up to three 4-pin PWM fans from a single NA-FC1 controller.

What is the correct way to wire the NA-FC1 between the motherboard and the fans?

Plug the controller's 4-pin PWM input into the motherboard fan header, then attach the splitter and fans to the controller's output; reversing this order disables speed reporting.

When will the No-Stop mode keep a fan spinning instead of letting it stop?

No-Stop mode prevents the fan from dropping below 300 rpm, avoiding BIOS fan-error warnings at very low speeds.

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