Multifan S5, Quiet USB Cooling Fan, Dual 80MM

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  • Ultra-quiet UL-certified USB fans designed to cool various electronics and components.
  • 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 popular AV electronics and game consoles. 
  • Dimensions: 3.2 x 3.2 x 1 in. per fan | Total Airflow: 52 CFM | Total Noise: 18 dBA | Bearings: Dual Ball


The ultra-quiet cooling fans can be positioned to stand upright or laid flat to cool various electronics and components. Features a multi-speed controller with power switch. Includes eight large anti-vibration rubber feet per fan and a 6-foot power cord. The USB plug can be plugged into the USB ports found behind popular electronics such as receivers and video game consoles. The two fans are permanently connected by a 2.5 feet cord and share the same multi-speed controller. 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. Contains AC Infinity axial fans ACX-FD8025(B)05W5 which meet UL-507 standards for safety under Underwriters Laboratories certificate E503903.


The fans include an in-line multi-speed controller with power switch to set the fan’s speed to optimal noise and airflow levels for various environments. 


For electronics and components 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 and S4 contains one fan, and MULTIFAN S5 and S7 contains two fans.


The ultra-quiet cooling fans are popular in a variety of electronics and components such as receivers, DVRs, video game consoles, modems, computers, amplifiers, and other audio video equipment. 

   Product Identification
   Manufacturer   AC Infinity Inc.
   Product Name   MULTIFAN S5
   Product Model   AI-MPF80A2
   UPC Code   854759004334
   Product Dimensions - Per Fan
   Total Dimensions   3.2 x 3.2 x 1.0 in. (8.0 x 8.0 x 2.5 cm)
   Hole to Hole Distance   2.8 x 2.8 in. (7.2 x 7.2 cm)
   Screw Hole Size   Ø 0.17 in. (Ø 0.4 cm)
   Cord Length Between Fans   30 in. (2.5 feet)
   Power Cord Length   72 in. (6 feet)
   Product Performance and Technical Specs
   Total Airflow   26 CFM
   Total Noise   18 dBA
   Speed   2000 RPM
   Operating Voltage   3 to 7V DC
   Power   1.1 W
   Current   0.38 A
   Wall Adapter Input   100 to 240V AC
   Static Pressure   1.6 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)
   UL Certification (Fans Only) PDF  
   CE Certification (Whole Product)
   Installation Manual PDF  
   RoHS Cert. (Whole Product)
   Installation Manual PDF  
   Product Manuals
   Fan Unit Manual
   Installation Manual PDF  



Multifan S5, Quiet USB Cooling Fan, Dual 80MM

Multifan S5, Quiet USB Cooling Fan, Dual 80MM

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