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.

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AC Infinity, MULTIFAN S2 Quiet USB Cooling Blower

AC Infinity, MULTIFAN S2 Quiet USB Cooling Blower

Product ID: 16916738

Details

Brand
AC Infinity
Compatible Devices
Electronic
Cooling Method
Air
Material
Metal Plastic
Maximum Rotational Speed
2.5 rpm
Noise Level
17 db

💨35 CFM airflow

🔇Ultra-quiet 17 dBA noise

⚙️Multi-speed controller

€ 38.40

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Description

❄️ Stay cool, stay ahead—because your gear deserves the best breeze.

UL CERTIFIED SAFETY - Reliable, certified quality for peace of mind in your tech sanctuary.
WHISPER QUIET COOLING - Keep your AV gear chill without the noise distraction.
PRECISION SPEED CONTROL - Customize airflow to balance silence and performance effortlessly.
USB POWERED CONVENIENCE - Plug directly into your devices—no extra adapters needed.
COMPACT LOW PROFILE DESIGN - Fits snugly in tight spaces, perfect for sleek setups.

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 make it ideal for cooling AV cabinets, gaming consoles, and other electronics with limited clearance, powered conveniently via USB.

Specifications

ASIN	B012CL2V3I
Air Flow Capacity	35 cfm
Best Sellers Rank	#12 in Internal Fans & Cooling Components
Brand Name	AC Infinity
Compatible Devices	Electronic components, Desktop computers
Cooling Method	Air
Customer Reviews	4.7 4.7 out of 5 stars (1,531)
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 db
Number of Items	1
Number of Packs	1
Part Number	AI-MPB140A
Power Connector Type	4-Pin
UPC	854759004495
Unit Count	1 Count
Voltage	5 volts
Wattage	1.2 watts

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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€ 38.40

Duties & taxes included

In stock

Sold byAmazon PortugalDelivered 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 Portugal.

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Join PRO →

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TrustScore 4.5 | 7,300+ reviews

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Good experience, but the tracking updates could be better.

2 months ago

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