AC Infinity Multifan S5 USB Cooling Fan - Dual 80MM | 52 CFM | Ultra Quiet | Dual Ball Bearing
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The AC Infinity Multifan S5 USB Cooling Fan Dual 80MM is an ultra-quiet cooling solution designed to ventilate electronics, AV equipment, and media cabinets where additional airflow is required. Featuring two 80mm fans connected to a single USB controller, this system delivers increased cooling performance while maintaining quiet operation.
Providing combined airflow of up to 52 CFM with only 18 dBA noise, the MULTIFAN S5 efficiently removes heat from receivers, routers, gaming consoles, DVR systems, amplifiers, and other electronic components. The included inline multi-speed controller with power switch allows users to adjust fan speed to achieve the ideal balance between airflow and noise levels.
Each fan includes eight large anti-vibration rubber feet to reduce vibration and stabilise operation. The fans are permanently connected via a 2.5-foot cable, sharing a single speed controller and USB power source for simple installation.
Powered through a 5V USB connection, the fan system can easily connect to USB ports found on televisions, receivers, computers, gaming consoles, and portable power banks. Each unit also includes an additional USB port that allows daisy chaining, enabling up to four MULTIFAN units to share the same power source for expanded cooling setups.
Built with UL-certified AC Infinity axial fans and premium dual-ball bearings, the MULTIFAN S5 delivers reliable performance and durability with a 67,000-hour lifespan, making it ideal for both professional AV installations and DIY electronics cooling projects.
Features
- Dual Fan Cooling System - Two 80mm fans deliver powerful combined airflow to effectively cool electronics and AV components.
- Ultra Quiet Performance - Produces only 18 dBA noise while providing up to 52 CFM airflow.
- Multi-Speed Controller - Inline controller with a power switch allows users to adjust airflow and noise levels.
- Premium Dual Ball Bearings - Long-lasting bearings provide reliable operation with a lifespan of up to 67,000 hours.
- USB Powered Convenience - Powered through USB ports on AV receivers, gaming consoles, televisions, computers, and power banks.
- Daisy Chain Capability - Built-in USB port allows up to four MULTIFAN units to share the same USB power source.
- Anti-Vibration Rubber Feet - Eight large rubber feet per fan reduce vibration and stabilise operation.
- Flexible Installation - Fans can be placed upright or flat and mounted horizontally or vertically.
- UL Safety Certified - Equipped with UL-507 certified AC Infinity axial fans for safe and reliable operation.
- CE and RoHS Certified - Manufactured to meet international safety and environmental standards.
Specifications
| Specification | Details |
|---|---|
| Manufacturer | AC Infinity Inc. |
| Product Name | MULTIFAN S5 |
| Product Model | AI-MPF80A2 |
| Fan Configuration | Dual 80mm Fans |
| Individual Fan Dimensions | 3.2 x 3.2 x 1.0 in (80 x 80 x 25 mm) |
| Cord Length | 72 in (6 ft) |
| Total Airflow | 52 CFM |
| Total Noise | 18 dBA |
| Speed | 2000 RPM |
| Operating Voltage | 3 to 7V DC |
| Power Consumption | 1.1 W |
| Current | 0.22 A |
| Static Pressure | 1.6 mm-H2O |
| Fan Bearings | Dual Ball Bearing |
| Mounting Position | Horizontal or Vertical |
| Life Expectancy | 67,000 Hours |
| Certifications | UL, CE, RoHS |
In The Box
- [1] x AC Infinity Multifan S5 USB Cooling Fan - Dual 80MM | 52 CFM | Ultra Quiet | Dual Ball Bearing


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