AC Infinity MULTIFAN S4 140mm USB Cooling Fan
4.6
(36,681)

AC Infinity MULTIFAN S4 140mm USB Cooling Fan

Whisper-quiet USB fan perfect for adding silent, reliable cooling to AV racks and consoles.

AC Infinity has built a reputation on solving one specific problem: keeping electronics cool and quiet. The MULTIFAN S4 is a focused execution of that mission. It’s a 140mm USB fan designed for the tight, often stagnant spaces inside media cabinets, entertainment centers, and PC cases where heat silently builds.

At just 1.5 watts, it draws minimal power from any USB port. The four-speed controller is its most practical feature. You can dial it down to a near-silent whisper for background ventilation or crank it up for active cooling during a long gaming session. The dual-ball bearings are rated for 67,000 hours of continuous use, and they allow the fan to be positioned flat or upright without strain. This flexibility is key for fitting into awkward nooks behind your gear.

It’s a simple, effective tool. The UL certification offers legitimate peace of mind for leaving it running unattended. While it won’t replace a high-pressure case fan for intense overclocking, for targeted airflow to prevent your receiver or console from throttling, it’s a brilliantly straightforward solution.

Brand: AC Infinity

Where to find it: Amazon

Best For:

HTPC buildersConsole moddersMedia center users

Specifications

Brand:AC Infinity
Power Connector Type:4-Pin
Voltage:5 Volts
Wattage:1.5 watts
Cooling Method:Air
Compatible Devices:Amplifier
Noise Level:18 Decibels
Material:Rubber
Maximum Rotational Speed:2000 RPM
Air Flow Capacity:57 Cubic Feet Per Minute
Manufacturer:AC Infinity
Dimensions:1"L x 5.5"W x 5.5"H
Weight:0.32 ounces
Model Number:AI-MPF140A
Advertisement Brutal Paid Advice — Fix what’s blocking your growth
Advertisement Brutal Paid Advice — Fix what’s blocking your growth

Interested in Featuring Your Product?

We're always on the lookout for innovative home gear that makes life easier and more enjoyable. If you've got something special that deserves the spotlight, we'd love to hear from you.

Our team of experts provides honest, thorough reviews that help homeowners make informed decisions. Let's work together to showcase what makes your product extraordinary.