---
product_id: 202008944
title: "Fan Speed Controller for 100 to 125V AC Axial Muffin Cooling Fans, Single Connector, for DIY Cooling Ventilation Exhaust Projects"
brand: "ac infinity"
price: "$74.58"
currency: USD
in_stock: true
reviews_count: 5
category: "Ac Infinity"
url: https://www.desertcart.us/products/202008944-fan-speed-controller-for-100-to-125v-ac-axial-muffin
store_origin: US
region: United States of America
---

# 100-125V AC input/output 6-foot cord length for flexible setup Ultra-quiet 32 dB noise level Fan Speed Controller for 100 to 125V AC Axial Muffin Cooling Fans, Single Connector, for DIY Cooling Ventilation Exhaust Projects

**Brand:** ac infinity
**Price:** $74.58
**Availability:** ✅ In Stock

## Summary

> 🌬️ Master your airflow, silence the noise, own the room.

## Quick Answers

- **What is this?** Fan Speed Controller for 100 to 125V AC Axial Muffin Cooling Fans, Single Connector, for DIY Cooling Ventilation Exhaust Projects by ac infinity
- **How much does it cost?** $74.58 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/202008944-fan-speed-controller-for-100-to-125v-ac-axial-muffin)

## Best For

- ac infinity enthusiasts

## Why This Product

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

## Key Features

- • **Discreet & Durable:** Compact controller with included wall-mount screws ensures a sleek, secure setup that blends into any space.
- • **Plug & Play Simplicity:** Single connector design and standard wall plug make installation effortless—no electrician needed.
- • **Versatile Compatibility:** Works seamlessly with AC Infinity AXIAL and other 100-125V AC muffin fans, ideal for DIY ventilation projects.
- • **Whisper-Quiet Operation:** Keep your environment peaceful with a fan speed controller that minimizes noise down to 32 decibels.
- • **Precision Airflow Control:** Dial in the perfect breeze with variable speed adjustment for tailored cooling and noise levels.

## Overview

The AC Infinity Fan Speed Controller offers precise, quiet speed regulation for 100-125V AC axial muffin fans. Featuring a 6-foot cord, single fan connector, and easy wall-mount installation, it’s engineered for DIY cooling and ventilation projects that demand customizable airflow and minimal noise disruption.

## Description

Designed to control the speed of AC axial muffin fans rated at 100 to 125V AC. Adjust your fan’s speed to optimize the airflow and noise for your application. Features connectors that can be attached to one muffin fan’s terminals. Includes wall-mount screws so you can secure the controller onto a flat surface. Length: 6 Feet | Power: 50W or 0.4 A | Input: 100 to 125V AC | Output: 0 to 125V AC Product Description The fan speed controller is designed for AC Infinity AXIAL series fans and other muffin AC fans rated 100 to 125V AC to enable speed control. Axial muffin fans are used for DIY projects requiring cooling and ventilation, with sizes including 80mm, 92mm, 120mm, and 172mm. The cord length is 6 feet. The cord contains one fan connector which can be attached to one muffin fan with 2-pin terminal connectors. Compatible fan’s that do not have terminal connectors may need to be hardwired. Speed controller range is limited on fans that have a capacitor or high wattage rating. The power plug can be plugged into standard wall outlets. Includes optional wall-mount wood screws to secure the controller onto a flat surface. Speed Controller The inline variable-speed controller can turn the fan and off, as well as control its speed. Easily turn the knob to optimize the fan’s airflow and noise levels for your application. Or simply use it respond to situations that may require additional or less air movement. Applications The fan controller can be used with any AC Infinity AXIAL series fans and other muffin AC fans rated 100 to 125V AC. Axial muffin fans are popular in a wide range of cooling, heating, and air circulation applications. This includes various DIY projects for doorways, room-to-room, fireplaces, stoves, and cabinets. Product Identification Manufacturer AC Infinity Product Name AC Fan Speed Controller, Single UPC Code 819137020382 Product Model AI-SC72A Product Dimensions Total Dimensions 2.9 x 1.5 x 1.2 in. ( 7.5 x 3.8 x 3 cm) Total Cord Length 72 Inches (6 Feet) Fan Connector to Controller 36 Inches (3 Feet) Controller to Power Plug 36 Inches (3 Feet) Product Performance and Technical Specs Fans Controlled 1 Voltage Input 100-125V AC 50/60 Hz Voltage Output 0-125V AC Power 50W Amperage 0.4A Cord Rating SPT 105°C 300 Volts Fan Connectors Terminal 2-Pin Power Plug NEMA 1-15P Power Plug RoHS Cert. (Whole Product) PDF

Review: Short story: In this video you can hear it on the lowest level with the door open. When I put it on the highest level and close the door. You can definitely hear it. It works great so far. Long story: I bought the AC Infinity AXIAL fan not realizing it didnt have a speed controller. So I bought the controller separately instead. I’m pretty sure you can find the fan and controller together for a reasonable price. I just didn’t want to go through the hassle of returning the fan and then buying the two things together. Anyway, I kept it on the lowest level all night. The cabinet door was closed - I barely heard it. I’m a light sleeper so I need this to be as quiet as possible if it is on overnight. Works great! I created my own FABRIKOR greenhouse cabinet this summer for my tropical plants that need moderate to high levels of humidity. I had everything I needed except for a fan for ventilation. So, I bought portable fans thinking those would do the trick. I was wrong. The two that I bought lowered the temperature and humidity levels. I decided leave it a without a ventilation fan. However, after 6-7 months the cabinet started to smell a little musty. I needed something quiet and small. Something that wouldn’t change the temperature or humidity inside the cabinet. Not sure if it’s a coincidence but it somehow increased the humidity. The mounting piece is not included. I bought it on Etsy - CADJungle.
Review: I searched a good deal for a fan I could use at 18V or more, had trouble finding something to suit my parameters. Then I stumbled across the AC Infinity fan with the control box... VOILA! Problem solved! My power supply was having issues running my project AND my fan, this completely solved the issue by having the fan run on AC power from the wall, with a control box to regulate fan speed and thereby control my projects thermal issue and also keep it on the down low noise wise. I have to say, the robust aluminum construction is welcome, and the noise level, well, What Noise? It's so much quieter than the name brand computer fan I had tried that I'm "blown" away! :) Great work! Excellent fan, exactly what I needed. Thank You!

## Features

- Designed to control the speed of AC axial muffin fans rated at 100 to 125V AC.
- Adjust your fan’s speed to optimize the airflow and noise for your application.
- Features connectors that can be attached to one muffin fan’s terminals.
- Includes wall-mount screws so you can secure the controller onto a flat surface.
- Length: 6 Feet | Power: 50W or 0.4 A | Input: 100 to 125V AC | Output: 0 to 125V AC

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00809BQZG |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 1,205,517 in DIY & Tools ( See Top 100 in DIY & Tools ) 2,537 in Bathroom Fans |
| Colour | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,070) |
| Date First Available | 4 May 2012 |
| Item Package Quantity | 1 |
| Item Weight | 0.28 g |
| Item model number | AI-SC72A |
| Manufacturer | AC Infinity |
| Noise Level | 32 Decibels |
| Package Dimensions | 13.41 x 8.71 x 7.19 cm; 0.28 g |
| Part number | AI-SC72A |
| Size | 6 Foot |
| Specific uses | personal |
| Switch Type | 1-way |
| Voltage | 125 Volts (AC) |
| Wattage | 50 watts |

## Product Details

- **Brand:** AC Infinity
- **Circuit type:** 1-way
- **Connector type:** 2-pin
- **Contact type:** Normally Open
- **Current rating:** 0.4 Amps
- **Material:** Copper
- **Operating voltage:** 125 Volts
- **Operation mode:** ON-ON-ON
- **Switch type:** Rotary
- **Terminal:** 2-pin

## Images

![Fan Speed Controller for 100 to 125V AC Axial Muffin Cooling Fans, Single Connector, for DIY Cooling Ventilation Exhaust Projects - Image 1](https://m.media-amazon.com/images/I/61wNZeYVULL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***A on 7 December 2023*

Short story: In this video you can hear it on the lowest level with the door open. When I put it on the highest level and close the door. You can definitely hear it. It works great so far. Long story: I bought the AC Infinity AXIAL fan not realizing it didnt have a speed controller. So I bought the controller separately instead. I’m pretty sure you can find the fan and controller together for a reasonable price. I just didn’t want to go through the hassle of returning the fan and then buying the two things together. Anyway, I kept it on the lowest level all night. The cabinet door was closed - I barely heard it. I’m a light sleeper so I need this to be as quiet as possible if it is on overnight. Works great! I created my own FABRIKOR greenhouse cabinet this summer for my tropical plants that need moderate to high levels of humidity. I had everything I needed except for a fan for ventilation. So, I bought portable fans thinking those would do the trick. I was wrong. The two that I bought lowered the temperature and humidity levels. I decided leave it a without a ventilation fan. However, after 6-7 months the cabinet started to smell a little musty. I needed something quiet and small. Something that wouldn’t change the temperature or humidity inside the cabinet. Not sure if it’s a coincidence but it somehow increased the humidity. The mounting piece is not included. I bought it on Etsy - CADJungle.

### ⭐⭐⭐⭐⭐ Review
*by D***M on 23 November 2018*

I searched a good deal for a fan I could use at 18V or more, had trouble finding something to suit my parameters. Then I stumbled across the AC Infinity fan with the control box... VOILA! Problem solved! My power supply was having issues running my project AND my fan, this completely solved the issue by having the fan run on AC power from the wall, with a control box to regulate fan speed and thereby control my projects thermal issue and also keep it on the down low noise wise. I have to say, the robust aluminum construction is welcome, and the noise level, well, What Noise? It's so much quieter than the name brand computer fan I had tried that I'm "blown" away! :) Great work! Excellent fan, exactly what I needed. Thank You!

### ⭐⭐⭐⭐⭐ Review
*by K***N on 3 May 2019*

Does exactly what it says it does. Built well. Finish was great. No burrs on the plastic. Yay!

## Frequently Bought Together

- AC Infinity, Fan Speed Controller for 100 to 125V AC Axial Muffin Cooling Fans, Single Connector, for DIY Cooling Ventilation Exhaust Projects
- AC Infinity AXIAL 1238, Muffin Fan, 120V AC 120mm x 38mm High Speed, UL-Certified for DIY Cooling Ventilation Exhaust Projects
- AC Infinity AXIAL 1225, Quiet Muffin Fan, 120V AC 120mm x 25mm Low Speed, UL-Certified for DIY Cooling Ventilation Exhaust Projects

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-22*