SKU: 69777500266

AC Infinity MULTIFAN Mini Quiet USB Cooling Fan 40mm

Sale price$34.19 Regular price$37.99
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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

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Description

AC Infinity MULTIFAN Mini Quiet USB Cooling Fan 40mmDescription 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

Description
  • 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
  • Product Description: The small cooling fan can be positioned to stand upright or laid flat to cool various electronics and ventilate DIY projects. Features a multi-speed controller with power switch. Includes anti-vibration rubber feet and a 6-foot power cord. The low power-consumption fan be be powered by USB ports found behind popular electronics and on portable power banks. Each unit contains an additional USB port, up to four fans can be daisy chained together to share the same power source. This fan system is CE and RoHS certified and contains premium dual-ball bearings, allowing it to be mounted horizontally or vertically.
  • Speed Controller: The fan includes an in-line multi-speed controller with power switch to set the fan's speed to optimal noise and airflow levels for various environments.
  • Connecting Additional Units: For applications that requires more airflow, each fan unit can daisy chain additional MULTIFAN S series fans. Up to four fans can share the same USB power source; and up to six fans can share the same thermal controller (sold separately). MULTIFAN S1, S2, S3, S4, and Mini contains one fan, and MULTIFAN S5 and S7 contains two fans.
  • Applications: This small and energy-efficient cooling fan is popular in various cooling and ventilation applications including video game consoles, cosplay, helmets, virtual reality gear, aquarium, Roku, router, raspberry pi, and other DIY projects.
  • Specifications
  • Product Identification
  • Manufacturer: AC Infinity Inc.
  • Product Name: MULTIFAN Mini
  • Product Model: AI-MPF40A
  • UPC Code: 819137020559
  • Product Dimensions
  • Total Dimensions: 1.6 x 1.6 x 0.8 in (40 x 40 x 20 mm)
  • Hole to Hole Distance: 1.26 x 1.26 in. (3.2 x 3.2 cm)
  • Screw Hole Diameter: 0.1 in. (0.35 cm)
  • Cord Length: 72 in. (6 feet)
  • Total Airflow: 12 CFM
  • Total Noise: 18 dBA
  • Speed: 6000 RPM
  • Operating Voltage: 3 to 7V DC
  • Power: 0.6 W
  • Current: 0.12 A
  • Static Pressure: 4.2 mm-H2O
  • Operating Humidity: 35 to 85% RH
  • Operating Temperature: 0 to 158 degrees F
  • Fan Bearings: Dual Ball
  • Mounting Positions: Horizontal or Vertical
  • L10 Life Expectancy: 67,000 Hours
  • Data Sheets
  • Download the AC Infinity MULTIFAN Series CE Certificate CTL1811096016 EC: here
  • Download the AC Infinity Fans RoHS Certificate SZXEC1900087001: here
  • Download the user manual: here
  • Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 69777500266

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    Thomas Boelter
    Houston, US
    ★★★★★ 4
    Socks
    Size: Large, Color: (001) Black / Black / White
    They are very comfortable and fit just right
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    Reviewed in the United States on September 3, 2025
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    Clint
    Grantham, US
    ★★★★★ 5
    Great socks!
    Size: Large, Color: (001) Black / Black / White
    These fit true to size. Good socks.
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    Reviewed in the United States on February 23, 2026
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    PETER CROWE
    Port Orchard, US
    ★★★★★ 5
    Great for walking all day at work as well
    Size: X-Large, Color: (001) Black / Black / White
    I walk approximately 10 miles a day at work, in a manufacturing setting. On concrete with steel toe shoes. My feet have been begging me to change from the socks that I have worn for years. I have worn these other name brand socks for probably 10 years. So, change was obviously something I had to be pushed into. I got on Amazon and searched for training socks. I read the description. Glanced at the reviews. I decided to move forward with purchasing these. I could not have been happier. My feet began feeling better immediately. And the priced was very reasonible.
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    Reviewed in the United States on April 12, 2026
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    jcolis
    Draper, US
    ★★★★★ 5
    You have one pair of feet. Treat them kindly with a pair of UA socks
    Size: Large, Color: (100) White / White / Black
    Soft and tough. Easy on the feet. Nice fit prevents sore spots and blisters.
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    Reviewed in the United States on December 3, 2025
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    Glass
    Whiting, US
    ★★★★★ 5
    I stay on your foot they don’t slip in your shoe
    Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
    This is the only socks I wear Under Armour because they stay in place I wear a size 8, but they’re more comfortable with a large instead of a medium, but I wear both because I have them already and you can pull them to stretch them out a little bit
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    Reviewed in the United States on May 12, 2026

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