AC Infinity
AC Infinity Multifan S7 Dual USB Cooling Fans
Best quiet cooling solution for home electronics and computer setups.
The AC Infinity MULTIFAN S7 is an ultra-quiet, UL-certified USB cooling fan system designed for a variety of electronics. Featuring dual 120mm fans, it provides a total airflow of 104 CFM with a noise level of only 19 dBA. The fans are powered via USB and include a multi-speed controller for adjustable fan speed, balancing noise and airflow. With dual-ball bearings, they offer a lifespan of 67,000 hours and can be mounted horizontally or vertically. The system is CE and RoHS certified, ensuring quality and safety for applications like DVRs, computers, and audio-video equipment.
$21.99
Owner Satisfaction
4.7
/ 5
Category Rank
152
/ 3605
#152 in Computer System Cooling Parts
Price vs Category Average
-85%
Below average
Manufacturer
.
/ AC Infinity Inc
Who it's for
- Users needing a balance between silent operation and cooling power
- Owners of routers or consoles with limited power outlets
- People managing airflow in cramped media cabinets or tight spaces
Who should skip it
- Users seeking long-term reliability for 24/7 continuous operation
- Enthusiasts requiring custom airflow configurations for complex hardware setups
- Users wanting automated thermal management without manual intervention
Performance breakdown
Acoustic Performance
Whisper-quiet operation makes it perfect for home theater and office environments.
Airflow Efficiency
Dual 120mm fans deliver robust cooling for high-heat electronics and consoles.
Durability
Dual-ball bearings ensure a long lifespan even under continuous daily operation.
Versatility
Flexible mounting options allow for seamless integration into any equipment setup.
Control Customization
Multi-speed controller provides precise balance between cooling power and noise levels.
Connectivity Convenience
USB power and daisy-chain capability simplify installation across multiple devices.
Key Specs
Manufacturer
AC Infinity Inc.
Product Model
AI-MPF120A2
Total Airflow
104 CFM
Total Noise
19 dBA
Speed
1300 RPM
Fan Bearings
Dual Ball
L10 Life Expectancy
67,000 Hours
Power Cord Length
6 feet
Features
- Ultra-quiet operation for minimal disturbance
- USB powered for convenient connectivity
- Multi-speed controller for customizable airflow and noise
- Dual-ball bearings ensure long lifespan and reliability
- Can be mounted horizontally or vertically
- Expandable system: chain up to four fans on one USB port
- UL-certified for safety and quality assurance
- CE and RoHS certified
- Includes anti-vibration rubber feet for stable operation
What customers say
Customers overwhelmingly praise the AC Infinity Multifan S7 for its superior quality and exceptionally quiet operation. The most valued feature is the near silent performance at lower speeds, making these fans perfect for noise sensitive areas like offices or bedrooms. Users consistently note the robust build quality, including durable metal grills, which supports the product's perceived longevity. These fans effectively reduce temperatures in electronics enclosures, preventing overheating issues. The included speed controller adds significant convenience, allowing easy balancing of cooling power and noise levels. While cooling performance is excellent for their size, the overall value is considered strong, justifying the cost through reliable, quiet, and high quality spot cooling. Satisfaction remains very high.
Know before you buy
Yes, the MULTIFAN S7 is designed to be powered by any standard USB port, including those on computers, gaming consoles, or DVRs. It is a plug-and-play system that does not require a wall outlet.
At a noise level of 19 dBA, these fans are exceptionally quiet. You will barely notice them running, making them ideal for home theater setups or quiet office environments.
Yes, the system is expandable. You can connect up to four fans to a single USB power source, allowing you to cool larger equipment setups without needing multiple power outlets.
Absolutely. The fans are designed to be mounted either horizontally or vertically, so you can place them on top of a receiver or attach them to the side of a computer case depending on your airflow needs.
Dual-ball bearings are significantly more durable than standard sleeve bearings. They allow the fans to run for up to 67,000 hours and enable the unit to be mounted in any orientation without risking premature wear.
No, the included multi-speed controller allows you to adjust the fan speed to your preference. You can dial it down for near-silent operation or increase the speed when your equipment needs maximum cooling.
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