AC Infinity MPB140A Multifan S2

AC Infinity

AC Infinity MPB140A Multifan S2 is a quiet USB cooling blower 140mm.


PRODUCT OVERVIEW (AC Infinity MPB140A Multifan S2)

  • Quiet blower designed to be placed on top of various electronics to draw out heat
  • Features a multi-speed controller to set the fan’s speed to optimal noise and airflow levels.
  • Low profile design pushes air out the rear, ideal for applications with limited clearance
  • USB plug can power the through through USB ports found behind popular AV electronics and game consoles.
  • Dimensions: 4.7 x 4.7 x 1 in. | Airflow: 35 CFM | Noise: 23 dBA

Product Details

AC Infinity MPB140A Multifan S2 – The MULTIFAN S2 quiet USB blower can be placed on top of various electronics and components. Features a multi-speed controller with three speed settings and off switch located on the cord. Six foot power cord contains a 5V DC USB plug that can power the blower through any USB port. Includes four silicone fan mounts that are attached to the bottom of the blower to absorb vibrations and to reduce noise. Each unit contains an additional USB port, up to four blowers can be daisy chained together to share the same power source. Rated at 67,000 hours, each dual ball bearing blower is certified by CE, UL, TUV, and RoHS.

Speed Controller

AC Infinity MPB140A Multifan S2 – The blower 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

AC Infinity MPB140A Multifan S2 – 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. MULTIFAN S1, S2, S3 and S4 contains one fan, and MULTIFAN S5 and S7 contains two fans.


This ultra-quiet blower is designed pull air from the bottom and push it out the rear. It is ideal for electronics and components positioned in a cabinet or rack with a limited clearance height. Popular applications include modems, routers, receivers, amplifiers, Xboxs, home theater, AV cabinets, and entertainment media centers.

SKU: AI-MPB140A Categories: ,
Weight 227 g
Dimensions 120 × 25 × 120 mm


Product Dimensions
Total Dimensions 4.7 x 4.7 x 1.0 in. (12.0 x 12.0 x 2.5 cm)
Cord Length 72 in. (6 feet)
Product Performance and Technical Specs
Total Airflow 35 CFM
Total Noise 17 dBA
Speed 1200 RPM
Operating Voltage 3 to 7V DC
Power 1.05 W
Current 0.2 A
Wall Adapter Input 100 to 240V AC
Static Pressure 0.84 mm-H2O
Operating Humidity 35 to 85% RH
Operating Temperature 14 to 230°F
Fan Bearings Dual Ball
L10 Life Expectency 67,000 Hours
Fan Quality Approvals UL, CE, TUV, RoHS


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