---
product_id: 202008933
title: "AC Infinity MULTIFAN Mini, Compact 40mm x 20mm USB Fan, UL-Certified for VR Gear, Aquarium, Roku, Router, Raspberry Pi, Cosplay, Helmet Cooling Ventilation"
brand: "ac infinity"
price: "1364107₫"
currency: VND
in_stock: true
reviews_count: 10
category: "Ac Infinity"
url: https://www.desertcart.vn/products/202008933-ac-infinity-multifan-mini-compact-40mm-x-20mm-usb-fan
store_origin: VN
region: Vietnam
---

# 12 CFM airflow - powerful breeze 18 dBA noise - whisper quiet USB powered - plug & play energy saver AC Infinity MULTIFAN Mini, Compact 40mm x 20mm USB Fan, UL-Certified for VR Gear, Aquarium, Roku, Router, Raspberry Pi, Cosplay, Helmet Cooling Ventilation

**Brand:** ac infinity
**Price:** 1364107₫
**Availability:** ✅ In Stock

## Summary

> 🆒 Stay cool, stay ahead — the fan your tech deserves!

## Quick Answers

- **What is this?** AC Infinity MULTIFAN Mini, Compact 40mm x 20mm USB Fan, UL-Certified for VR Gear, Aquarium, Roku, Router, Raspberry Pi, Cosplay, Helmet Cooling Ventilation by ac infinity
- **How much does it cost?** 1364107₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/202008933-ac-infinity-multifan-mini-compact-40mm-x-20mm-usb-fan)

## 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

- • **Silent Efficiency:** Ultra-quiet operation at just 18 dBA keeps your workspace calm and focused.
- • **Compact Powerhouse:** Mini 40mm x 20mm design fits anywhere, from VR gear to Raspberry Pi setups.
- • **Customizable Cooling:** Multi-speed controller lets you dial in the perfect airflow without distraction.
- • **Durability That Lasts:** Dual ball bearings rated for 67,000 hours ensure relentless, maintenance-free performance.
- • **Plug & Play Convenience:** USB-powered with a handy on-cable switch for instant control—no batteries needed.

## Overview

The AC Infinity MULTIFAN Mini is a compact, UL-certified USB fan delivering 12 CFM airflow at whisper-quiet 18 dBA noise levels. Designed for versatile cooling applications—from VR headsets to routers—it features a multi-speed controller and durable dual ball bearings rated for 67,000 hours. Powered via USB with an integrated on/off switch, this fan offers effortless, reliable ventilation in a sleek, portable form factor.

## Description

AC Infinity MULTIFAN Mini, Compact 40mm x 20mm USB Fan, UL-Certified for VR Gear, Aquarium, Roku, Router, Raspberry Pi, Cosplay, Helmet Cooling Ventilation : desertcart.co.uk: Computers & Accessories

Review: The Real Deal 5/5 - bought is companies stuff as it is designed for high end consumers. not us regular , rather the breaking bad type of high end consumers. hope you understand the analogy. so what is great. its quiet and high quality it will continue working without supervision especially if you are locked in or doing time. it will continue to work flawlessly behind your back and you don't have to worry about it. its silent and yes there is going to be some wind noise however there isn't going to be any whining noise. I use it to cool tp link deco be85 mesh wifi. the be 85 has inbuilt fans.however those fans were no good . I has to install this unit beneath each of those satellites . now never have had any reason to restart the mesh network. the medium speed is good in summer and I guess I can switch to low speed in winter to keep everything going. I the went ahead and bought the 2 fan version from same company to place under my virgin media hub 5 or 6 and the other end behind my tv ports unit. have had them for a months and I can say this unit is good quality. the power is supplied by usb a type plug which is connected to some usb a outlet on the powerstrips I have near appliances. the airflow is restricted unless you place something under the fan to raise it above around 1 inch above its plastic pucks to achieve silence and better airflow. it can not work with the plastic pucks alone. they will not let enough air flow beneath the fan to throw upwards. it needs clearance on at least the input side of 1 to 2 inches to achieve good blowing power. the 140mm size is good for be85 as it blows inside and around the body of the unit and man oh man is the tp link deco be85 big. so you can get an idea. it is as large as a 70kg persons thigh . so you get an idea that 140mm is a bit larger then a persons thigh . power consumption is ok however I didn't test it. seems the 2 fan 120 mm works as good as the 140mm single fan version. I would have preferred the 140mm version as it was single unit in comparison to the dual 120mm versions which I now have to place 1 below and 1 on top of the other be85 deco unit. definitely buy other stuff from this company . if you need an exhaust fan this is the company. if you need electronic cooling fan this is that company. they have a huge variety of stuff that carters to that class of people who we all hate however they are the ones making all the money after other bad businesses in the world. the 4 or 6 greatest money makers businesses right now running the world . and yes it definitely isn't owing a pizza chain or a restaurant or clothing store.
Review: Well built and very quiet - Note: Product purchased directly from seller AC Affinity and fulfilled by desertcart. I use this to improve the air circulation on my Xbox One, which is housed in a narrow TV cabinet. Even though the cabinet is not fully closed, the external of the Xbox can get very hot, especially during a long session. I placed this fan directly on over the Xbox's top vents, blowing away from the xbox. The build quality is solid. You can shake it about, try to bend or squeeze it, there is no rattling or even creaking noise. Around the frame, all surfaces that you can touch, it is all smooth, no hint of any sharp edges. When the fan is running it is very quiet. There is a mechanical switch built into the USB cable. This switch has 4 positions; OFF, speed 1, 2 and 3. At speed 1, you wont even know it is running. Speed 2, in a room without any other sound you can almost hear it, but it is still quieter than my external Western Digital hard drive. Speed 3, well, you can definitely hear it. Not that the motor is noisy, just the wind noise it generated, and if you have the TV speaker on, it will drown out the noise from the fan. The OFF position is very useful, because I connected to the XBox usb port, and the port is always powered, even when Xbox is in standby/sleep mode. With the OFF position I can switch off the fan when I not using the Xbox. This is so effective, speed 1 is enough to keep the Xbox cool. The fan comes with 4 rubber feet attached, it does a very good job of keeping the fan on top of the xbox. At £15, this us not the cheapest 120mm fan on desertcart, but I am convinced this is worth its price tag. It is certainly has done what I needed it to do and quality is great. Only question is, how long will it last, time will tell. I would highly recommend this fan to anyone looking to improve air circulation for AV devices.

## Features

- Compact and energy-efficient USB fan designed various DIY cooling and ventilation projects.
- Features a multi-speed controller to set the fan’s speed to optimal noise and airflow levels.
- Dual-ball bearings have a lifespan of 67,000 hours and allows the fans to be laid flat or stand upright.
- USB plug can power the fan through USB ports found behind electronics and on portable power banks.
- Dimensions: 1.6 x 1.6 x 0.8 in. | Airflow: 12 CFM | Noise: 18 dBA| Bearings: Dual Ball

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07CNJ4DYX |
| Air Flow Capacity | 12 Cubic Feet Per Minute |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 4,571 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 3 in USB Fans |
| Colour | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (35,108) |
| Date First Available | 25 April 2018 |
| Included components | Cord |
| Item Package Quantity | 1 |
| Item Weight | 9.07 g |
| Item model number | AI-MPF40A |
| Manufacturer | AC Infinity |
| Material | Rubber |
| Noise Level | 18 Decibels |
| Part number | AI-MPF40A |
| Product Dimensions | 2.03 x 4.06 x 4.06 cm; 9.07 g |
| Size | Mini - 40 mm x 20 mm |
| Special Features | Portable |
| Specification met | CE, RoHS, UL |
| Voltage | 12 Volts |
| Wattage | 18 watts |

## Product Details

- **Brand:** AC Infinity
- **Compatible devices:** Devices with a USB port
- **Cooling method:** Forced air, Forced convection
- **Material:** Rubber
- **Maximum rotational speed:** 6000 RPM
- **Noise level:** 18 Decibels
- **Power connector type:** 4-Pin
- **Product dimensions:** 41L x 20W x 41H millimetres
- **Voltage:** 12 Volts
- **Wattage:** 18 watts

## Images

![AC Infinity MULTIFAN Mini, Compact 40mm x 20mm USB Fan, UL-Certified for VR Gear, Aquarium, Roku, Router, Raspberry Pi, Cosplay, Helmet Cooling Ventilation - Image 1](https://m.media-amazon.com/images/I/51xuX9D1r-L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ The Real Deal 5/5
*by T***L on 14 July 2025*

bought is companies stuff as it is designed for high end consumers. not us regular , rather the breaking bad type of high end consumers. hope you understand the analogy. so what is great. its quiet and high quality it will continue working without supervision especially if you are locked in or doing time. it will continue to work flawlessly behind your back and you don't have to worry about it. its silent and yes there is going to be some wind noise however there isn't going to be any whining noise. I use it to cool tp link deco be85 mesh wifi. the be 85 has inbuilt fans.however those fans were no good . I has to install this unit beneath each of those satellites . now never have had any reason to restart the mesh network. the medium speed is good in summer and I guess I can switch to low speed in winter to keep everything going. I the went ahead and bought the 2 fan version from same company to place under my virgin media hub 5 or 6 and the other end behind my tv ports unit. have had them for a months and I can say this unit is good quality. the power is supplied by usb a type plug which is connected to some usb a outlet on the powerstrips I have near appliances. the airflow is restricted unless you place something under the fan to raise it above around 1 inch above its plastic pucks to achieve silence and better airflow. it can not work with the plastic pucks alone. they will not let enough air flow beneath the fan to throw upwards. it needs clearance on at least the input side of 1 to 2 inches to achieve good blowing power. the 140mm size is good for be85 as it blows inside and around the body of the unit and man oh man is the tp link deco be85 big. so you can get an idea. it is as large as a 70kg persons thigh . so you get an idea that 140mm is a bit larger then a persons thigh . power consumption is ok however I didn't test it. seems the 2 fan 120 mm works as good as the 140mm single fan version. I would have preferred the 140mm version as it was single unit in comparison to the dual 120mm versions which I now have to place 1 below and 1 on top of the other be85 deco unit. definitely buy other stuff from this company . if you need an exhaust fan this is the company. if you need electronic cooling fan this is that company. they have a huge variety of stuff that carters to that class of people who we all hate however they are the ones making all the money after other bad businesses in the world. the 4 or 6 greatest money makers businesses right now running the world . and yes it definitely isn't owing a pizza chain or a restaurant or clothing store.

### ⭐⭐⭐⭐⭐ Well built and very quiet
*by D***W on 24 September 2021*

Note: Product purchased directly from seller AC Affinity and fulfilled by Amazon. I use this to improve the air circulation on my Xbox One, which is housed in a narrow TV cabinet. Even though the cabinet is not fully closed, the external of the Xbox can get very hot, especially during a long session. I placed this fan directly on over the Xbox's top vents, blowing away from the xbox. The build quality is solid. You can shake it about, try to bend or squeeze it, there is no rattling or even creaking noise. Around the frame, all surfaces that you can touch, it is all smooth, no hint of any sharp edges. When the fan is running it is very quiet. There is a mechanical switch built into the USB cable. This switch has 4 positions; OFF, speed 1, 2 and 3. At speed 1, you wont even know it is running. Speed 2, in a room without any other sound you can almost hear it, but it is still quieter than my external Western Digital hard drive. Speed 3, well, you can definitely hear it. Not that the motor is noisy, just the wind noise it generated, and if you have the TV speaker on, it will drown out the noise from the fan. The OFF position is very useful, because I connected to the XBox usb port, and the port is always powered, even when Xbox is in standby/sleep mode. With the OFF position I can switch off the fan when I not using the Xbox. This is so effective, speed 1 is enough to keep the Xbox cool. The fan comes with 4 rubber feet attached, it does a very good job of keeping the fan on top of the xbox. At £15, this us not the cheapest 120mm fan on Amazon, but I am convinced this is worth its price tag. It is certainly has done what I needed it to do and quality is great. Only question is, how long will it last, time will tell. I would highly recommend this fan to anyone looking to improve air circulation for AV devices.

### ⭐⭐⭐⭐⭐ Great extra fan
*by C***L on 19 April 2025*

I love it. It just does what I needed, it's quiet, after years still running strong, totally reliable and dependable. The speed range is great - at the slowest it's absolutely quiet yet still providing significant air flow, at the highest it's obviously no more silent but the airflow is marginally more intensive. I needed it for badly designed laptop with only passively cooled CPU in the back of the display side and I just glued velcro on the fan and the back of the laptop and would stick it on the back whilst working, did the job and made that crappy laptop usable eliminating constant down throttling.

## Frequently Bought Together

- AC Infinity MULTIFAN Mini, Compact 40mm x 20mm USB Fan, UL-Certified for VR Gear, Aquarium, Roku, Router, Raspberry Pi, Cosplay, Helmet Cooling Ventilation
- AC Infinity MULTIFAN S1, Quiet 80mm USB Fan, UL-Certified for Receiver DVR PlayStation Xbox Computer Cabinet Cooling
- AC Infinity Turbo Fan Power Adapter, for MULTIFAN Series USB Fans

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.vn/products/202008933-ac-infinity-multifan-mini-compact-40mm-x-20mm-usb-fan](https://www.desertcart.vn/products/202008933-ac-infinity-multifan-mini-compact-40mm-x-20mm-usb-fan)

---

*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-20*