Is the daisy chain port full, unswitched usb power, or is it controlled via the speed control? as it's located after the speed switch it wasn't clear.

The port is controlled by the switch. I got 4.9V on H, 4.4V on M, lower than 4V on L and no output on OFF.

can you use with xbox one,what is the USB type?

I put one of these on my Xbox One and it works great. It isn't loud at all and keeps my system cooler. It is a standard usb connection (not a mini or micro USB).

Will this centrifugal fan work better than the equivalent axial version behind a HEPA filter? I heard centrifugal fans work better with pressure drops

centrifugal fans work better when a pressure difference is necessary ie your HEPA filter, this fan will work better than an axle fan and as the filter starts clogging up will continue to pull air longer

Can you power the blower on full speed with the female usb port? i know that it is designed to power an additional fan.

No, the male usb is inline with the switch, that's how you connect it.

Ac Infinity Multifan S2 Quiet Usb Cooling Blower

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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5615 som

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In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

❄️ Stay cool, stay ahead — because overheating is so last season!

UL CERTIFIED SAFETY - Trusted, certified reliability for your valuable electronics.
UNIVERSAL USB POWER - Plug & play with any USB port—no extra adapters needed.
WHISPER QUIET COOLING - Keep your gear chill without the noise distraction.
PRECISION SPEED CONTROL - Customize airflow for perfect balance of silence and power.
COMPACT LOW PROFILE DESIGN - Fits tight spaces, pushing hot air out the back effortlessly.

The AC Infinity MULTIFAN S2 is a UL-certified, ultra-quiet 120mm USB blower fan delivering 35 CFM airflow at just 17 dBA noise. Its low-profile design and multi-speed controller optimize cooling for electronics like receivers, DVRs, modems, and game consoles, powered conveniently via USB. Ideal for professionals seeking reliable, silent heat management to extend device lifespan and maintain peak performance.

Specifications

ASIN	B012CL2V3I
Air Flow Capacity	35 Cubic Feet Per Minute
Best Sellers Rank	#14 in Internal Fans & Cooling Components
Brand	AC Infinity
Brand Name	AC Infinity
Compatible Devices	Electronic components, Desktop computers
Cooling Method	Air
Customer Reviews	4.7 out of 5 stars 36,736 Reviews
Item Dimensions L x W x H	1"L x 4.7"W x 4.7"H
Item Weight	8 Ounces
Manufacturer	AC Infinity
Material Type	Metal, Plastic
Maximum Rotational Speed	2.5 RPM
Model	AI-MPB140A
Noise Level	17 Decibels
Number of Items	1
Part Number	AI-MPB140A
Power Connector Type	4-Pin
Product Dimensions	1"L x 4.7"W x 4.7"H
UPC	854759004495
Unit Count	1.0 Count
Voltage	5 Volts
Wattage	1.2 watts

Reviews

F**S

31.10.2022

C**R

14.03.2020

K**N

19.01.2026

C**R

25.03.2026

D**D

14.01.2026

D**3

9.06.2021

K**C

25.09.2025

S**8

11.02.2026

M**I

26.04.2024

G**H

27.07.2018

A**O

3.01.2026

A**ー

9.11.2025

G**O

5.01.2026

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5615 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Kyrgyzstan.

Secure transaction

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AC Infinity, MULTIFAN S2 Quiet USB Cooling Blower

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Description

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Common Questions