---
product_id: 443470298
title: "RUNCCI-YUN 3Pcs USB Fan Speed Controller, DC 5V Stepless Mini USB Fan Governor DC 4-12V to 2.5-8V 5W Regulator Speed Control Knob with Switch"
brand: "runcci-yun"
price: "3485 kr"
currency: ISK
in_stock: true
reviews_count: 13
category: "Runcci Yun"
url: https://www.desertcart.is/products/443470298-runcci-yun-3pcs-usb-fan-speed-controller-dc-5v-stepless
store_origin: IS
region: Iceland
---

# 5W power efficiency Stepless voltage control 2.5-8V Universal USB compatibility RUNCCI-YUN 3Pcs USB Fan Speed Controller, DC 5V Stepless Mini USB Fan Governor DC 4-12V to 2.5-8V 5W Regulator Speed Control Knob with Switch

**Brand:** runcci-yun
**Price:** 3485 kr
**Availability:** ✅ In Stock

## Summary

> 🌬️ Master your airflow, own your comfort zone.

## Quick Answers

- **What is this?** RUNCCI-YUN 3Pcs USB Fan Speed Controller, DC 5V Stepless Mini USB Fan Governor DC 4-12V to 2.5-8V 5W Regulator Speed Control Knob with Switch by runcci-yun
- **How much does it cost?** 3485 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/443470298-runcci-yun-3pcs-usb-fan-speed-controller-dc-5v-stepless)

## Best For

- runcci-yun enthusiasts

## Why This Product

- Trusted runcci-yun brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Triple Pack Value:** Get 3 controllers in one set to optimize multiple fans or share the cool with your workspace squad.
- • **Compact & Portable:** Slim 50x44x18mm design fits anywhere—perfect for your desk, Raspberry Pi projects, or travel setup.
- • **Durable Copper Core:** Premium pure copper conductor ensures long-lasting, reliable performance under daily use.
- • **Plug & Play Simplicity:** Just connect to any USB power source and fan—no tech headaches, just instant airflow mastery.
- • **Precision Cooling Control:** Stepless rotary knob lets you dial in the perfect breeze from whisper-quiet to refreshing gusts.

## Overview

The RUNCCI-YUN 3Pcs USB Fan Speed Controller offers stepless voltage adjustment from 2.5V to 8V, enabling precise fan speed control for any 5V USB fan. Featuring a durable pure copper conductor and a compact rotary knob with switch, this 5W regulator is ideal for cooling electronics or personal spaces. The set includes three controllers, perfect for multi-fan setups or sharing, delivering reliable, customizable airflow with plug-and-play ease.

## Description

Product name: Stepless USB Fan Controller USB fan controller Strong / weak wind can be freely adjusted Stepless controller for USB fans Button with switch Note: If you are using the fan with two speed settings, please set the fan to first gear, otherwise it may not be able to adjust the speed. Operating instructions: Suitable for common 5.0V USB fans on the market. Working voltage: DC 4V-12V Output voltage: DC 2.5 ~ 8.0V Nominal power: 5W (do not overload!) Test temperature: -40 ~ 85 ℃ Physical dimensions: 50 * 44 * 18mm

Review: Works great to cool Raspberry Pi PiHole build. - Works great to cool Raspberry Pi PiHole build. Control range is accurate and I am able to control 2 fans per dial.
Review: Controls speed nicely - Great

## Features

- ★ Material: The USB fan controller is made of an electronic accessory, the inner conductor is made of pure copper, it is durable and durable for you.
- ★ Rated power: 5W (please DO NOT overload), suitable for common 5.0V USB fans
- ★ USB fan speed controller: The wind speed of the fan can be adjusted between 2.5V to 8V depending on your convenience
- ★ Instructions for use: Plug the controller into the phone charger or charging treasure, plug the fan USB plug into the controller USB port, and then turn the adjustment knob to adjust the small air volume and large air volume. Turn the knob clockwise To increase the air volume, the air volume is reduced by turning it counterclockwise and the rotary knob has a switching function.
- ★ Package including: 3 pieces * USB fan speed controller

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09L7YM6H5 |
| Best Sellers Rank | 179,024 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 43 in Heater Parts & Accessories |
| Brand | RUNCCI-YUN |
| Circuit Type | 1-way |
| Colour | Usb &Pwm&3pcs |
| Connector Type | USB |
| Contact Material | Copper |
| Contact Type | Normally Open |
| Control Method | Touch |
| Controller Type | Mechanical knob, Switch Control |
| Country Of Origin | China |
| Customer Reviews | 4.4 4.4 out of 5 stars (396) |
| Included Components | 3 USB Fan Speed Controllers |
| Item Dimensions | 44 x 18 x 50 millimetres |
| Item Weight | 0.05 Kilograms |
| Manufacturer | RUNCCI-YUN |
| Material | Copper |
| Model Number | RUNCCI-YUN_USB_Controller_Fan_Series |
| Mounting Type | Clip-on/Clamp Mount |
| Number of Positions | 1 |
| Operating Voltage | 4 Volts (DC) |
| Operation Mode | ON-OFF |
| Specification Met | CE, IEC 60669-2-1:2002, UL |
| Switch Type | Rotary |
| Terminal | USB |
| Wattage | 5 watts |

## Product Details

- **Brand:** RUNCCI-YUN
- **Circuit type:** 1-way
- **Connector type:** USB
- **Contact type:** Normally Open
- **Item dimensions L x W x H:** 44 x 18 x 50 millimetres
- **Material:** Copper
- **Operating voltage:** 4 Volts (DC)
- **Operation mode:** ON-OFF
- **Switch type:** Rotary
- **Terminal:** USB

## Images

![RUNCCI-YUN 3Pcs USB Fan Speed Controller, DC 5V Stepless Mini USB Fan Governor DC 4-12V to 2.5-8V 5W Regulator Speed Control Knob with Switch - Image 1](https://m.media-amazon.com/images/I/61jBHdnx-+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great to cool Raspberry Pi PiHole build.
*by C***R on 2 March 2025*

Works great to cool Raspberry Pi PiHole build. Control range is accurate and I am able to control 2 fans per dial.

### ⭐⭐⭐⭐⭐ Controls speed nicely
*by R***R on 3 March 2025*

Great

### ⭐⭐⭐⭐ Works exactly as I wanted but untidy finish to product.
*by C***S on 16 June 2025*

This is really good, most fans come with a speed set too high, for whatever reason manufacturers wont make slow spinning fans, it works as expected, attenuating the power of the fan, spins slower, less noise and dust. Fan speed is not linear with fan performance, as an example, half speed typically loses only about 5-10% performance. My only reason for not giving this 5 stars is that the PCB is exposed, a shell casing would have been nice.

## Frequently Bought Together

- RUNCCI-YUN 3Pcs USB Fan Speed Controller, DC 5V Stepless Mini USB Fan Governor DC 4-12V to 2.5-8V 5W Regulator Speed Control Knob with Switch
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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-05-03*