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AC Infinity MULTIFAN Mini, Quiet USB Cooling Fan, 40mm

AC Infinity

8 total reviews

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Price: $24.99 USD
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Price: $24.99 USD
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Availability: 14 in stock

Estimated Arrival: Between Jun 25 and Jun 30.

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Why Buy From Grow Tents Depot
  • Compact and Energy-Efficient USB Fan: This USB fan is designed for various DIY cooling and ventilation projects. It is compact and energy-efficient, making it ideal for small spaces. The fan features a multi-speed controller that allows you to set the fan's speed to optimal levels for both noise and airflow.
  • Dual-Ball Bearings: The fan is equipped with dual-ball bearings that have a lifespan of 67,000 hours. This ensures that the fan will last a long time and can be used in various positions. It can be laid flat or stood upright, depending on your cooling or ventilation needs.
  • USB Powered: The fan is powered by a USB plug, which means it can be powered through USB ports found behind electronics or on portable power banks. This makes it convenient to use in various settings and eliminates the need for external power sources.
  • Product Dimensions: The fan has dimensions of 1.6 x 1.6 x 0.8 inches, providing a compact size that can fit in small spaces. The airflow of the fan is 12 CFM, and the noise level is only 18 dBA, ensuring quiet operation. The fan is equipped with dual ball bearings for smooth and efficient operation.
  • Product Description: This small cooling fan is perfect for cooling electronics and ventilating DIY projects. It can be positioned to stand upright or laid flat, allowing for flexibility in how it is used. The fan comes with anti-vibration rubber feet and a 6-foot power cord for easy installation. It is low power-consumption and can be powered by USB ports on popular electronics or portable power banks. Each unit contains an additional USB port, allowing up to four fans to be daisy-chained together and share the same power source. The fan system is CE and RoHS certified and features premium dual-ball bearings, making it suitable for horizontal or vertical mounting.
  • Speed Controller: The fan includes an in-line multi-speed controller with a power switch. This allows you to adjust the fan's speed to achieve optimal noise and airflow levels in different environments.
  • Connecting Additional Units: If you require more airflow, you can daisy chain additional MULTIFAN S series fans. Each fan unit can be connected to up to four other fans, sharing the same USB power source. For even more fans, you can use a thermal controller (sold separately) to connect up to six fans. The MULTIFAN series includes models S1, S2, S3, S4, Mini, S5, and S7, offering various configurations to suit your needs.
  • Applications: This small and energy-efficient cooling fan is suitable for a wide range of cooling and ventilation applications. It is popular for use with video game consoles, cosplay, helmets, virtual reality gear, aquariums, Rokus, routers, Raspberry Pis, and other DIY projects.
  • Specifications
  • 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 Size: Ø 0.1 in. (Ø 0.35 cm)
  • Cord Length: 72 in. (6 feet)
  • Product Performance and Technical Specs
  • 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°F
  • Fan Bearings: Dual Ball
  • Mounting Positions: Horizontal or Vertical
  • L10 Life Expectancy: 67,000 Hours
  • UL Certification (Fans Only)
  • Data Sheet
  • Download the Product Manual: here
  • Download the RoHS Certification: here
  • Download the UL Certification: here
  • Download the CE Certification: here
  • Price Match Guarantee
  • Shop safe knowing that Grow Tents Depot offers the lowest prices on all of our products - all the time - guaranteed!
  • We work very hard to ensure that we always have the absolute best prices online, so we make this guarantee knowing that if you find a lower price somewhere else, we will match or even beat our competitor's price! Simply reach out to us with a screenshot and link of our competitor's price (including shipping) and let us make you an offer! If you have already purchased with us and you find a better price within one week of your order, let us know and we will issue a refund for the difference!
  • Our 100% price match guarantee has some limitations:
  • -Promotions such as rebates, "buy one, get one free", and other discounts are not eligible.
  • -The item must be in stock on the competitors website when you request your price match.
  • -The competitor must be an online store and may not have a retail location.
  • -The website cannot be a discounter or auction website (e.g. Amazon, eBay, Overstock, etc.).
  • -The competitor must be an authorized retailer of the product in question.
  • -The price match applies to the item price and the shipping charges but excludes sales tax.
  • -On rare occasions, we reserve the right to refuse a price match if we would incur a loss.
  • Get growing today!
  • Shipping, Returns, and Cancellations
  • Order Confirmation:
  • As soon as your order is placed, an order confirmation e-mail will be sent to you. This means that your order has been successfully entered into our system and that we have pre-authorized your payment method for the purchase. In rare cases, if your product is unavailable or delayed, we will contact you and see if you would like to either wait for your item(s) to become available, change your order, or simply be refunded for your cancelled item(s). If your item(s) are immediately available, we will process your order and arrange for soonest possible shipment. Please note that once the order is processed we are unable to change the shipping address.
  • Order Shipment:
  • We offer FREE SHIPPING on all orders and currently service the lower 48 states. Most items are shipped within 1 to 3 business days and shipping time is typically between 1 to 7 business days. There are some products that have a slightly longer lead time and this will be indicated on the individual product pages if applicable. Once your order has shipped, we will send you the tracking information as soon as it becomes available. If a week or more has gone by and you still have not received the tracking information (or the number is not working), please reach out to us right away at If you are in Alaska, Hawaii, or outside of the US and would like to place an order: we may be able to ship to you, but you will need to reach out to us for a custom shipping quote.
  • Cancellations and Refunds:
  • If you need to cancel your order, please reach out to us as soon as possible. Cancelled orders are subject to a 5% administrative fee (for credit card, debit card, Amazon Pay, Coinbase, and Facebook orders) or an 8% administrative fee (for Shop Pay Installments and Sezzle orders). We can accommodate most cancellation and refund requests, however if a product has been arranged to ship or has shipped, then the item will be treated as a return and will potentially be subject to return shipping costs and restocking fees. Any refunds that may be issued will only be issued to the original payment method used when placing your order and only after the return has been confirmed to be received back in its original condition.
  • Returns:
  • Please see our full return policy at the footer of this page for brand-specific details. A restocking fee of 5-25% may apply on returns within the dates of the brand-specific return policies. If you would like to proceed with a return, please reach out to us to receive the precise return instructions and clarification on the restocking fees for your item(s).
  • Warranty
  • Grow Tents Depot only sells brand new products, never used, and therefore all items come with full manufacturer warranties if offered. Please note that Grow Tents Depot is not responsible for replacing or repairing your product while under warranty as this is the manufacturer's commitment to you. However, Grow Tents Depot would be happy to assist you in getting your product repaired or replaced by coordinating with the manufacturer.
  • If you would like us to assist with a warranty claim, please reach out to support with the following information:
  • Your order number.
  • Your shipping address.
  • A brief description of the issue.
  • Any photos or videos demonstrating the issue.

  • Customer Reviews

    Based on 8 reviews
    Mort D.
    Great Fans

    I have two on the bottom of my Raspberry Pi 4 (also acts as a stand) and keeps the Pi at 34C using the lowest setting.