What is the rpm on these?

I am not sure of the exact rpm. I can tell you that I have 7 of these. 1 80mm, 4 120mm, 2 140 mm. I use them on top of my receiver, under my laptop, router and on my nas. Very quiet while still pushing or pulling a good cfm number. Sorry I do not know the exact rpm speed but if your looking at a home theatre application I think these will work great. If you want cfm and some noise is OK you can probably do better.

How many watts does it consume?

With the a/c adapter used, 1.8 watts. Used without the a/c adapter (as usb powered) .80 of a watt.

14 months ago I purchased 3 140mm units for 24x7 usage; all 3 now fail to spin and just jiggle when plugged in. Anyone else have high failure rate?

Out of three 140mm and four 120mm units, that I own and have been running for approximately 24 months... One failure. Sent it back and got a replacement with no issues; blade broke.

I see the power cord has a usb connector on one side. is the cord hard wired to the fan or is there a connector? if a connector what type?

It is a full powered USB port? Or does the fan speed switch also affect the power coming out of the USB female attached to the fan?

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MULTIFAN S4, Quiet 140mm USB Fan, UL-Certified for Receiver DVR Playstation Xbox Computer Cabinet Cooling

Product ID: 254325798

Details

Brand
AC Infinity
Power connector type
4-Pin
Product dimensions
25L x 140W x
Voltage
5 Volts
Wattage
1.5 watts

🌀57 CFM airflow

🔇18 dBA ultra-quiet

🔋67,000 hrs dual-ball bearing lifespan

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Description

🌀 Stay cool, stay ahead — silent power for your tech sanctuary

BUILT TO LAST - Durable dual-ball bearings rated for 67,000 hours of reliable performance
PLUG PLAY POWER - USB-powered for effortless integration with your PlayStation, Xbox, DVR, or PC
VERSATILE PLACEMENT - Lay flat or stand upright to fit seamlessly into any AV or gaming cabinet
CUSTOMIZABLE AIRFLOW - Multi-speed controller lets you dial in the perfect balance of airflow and silence
WHISPER QUIET COOLING - Ultra-quiet 18 dBA noise level keeps your setup serene and focused

The AC Infinity MULTIFAN S4 is a UL-certified, ultra-quiet 140mm USB fan designed to optimize cooling for electronics like gaming consoles, DVRs, and computer cabinets. Featuring a multi-speed controller, dual-ball bearings with a 67,000-hour lifespan, and a compact design that supports both flat and upright placement, it delivers 57 CFM airflow at just 18 dBA noise. USB-powered for easy setup, it’s the perfect silent cooling solution for professionals who demand performance without distraction.

Specifications

ASIN	B00MWH4FL4
Air Flow Capacity	57 Cubic Feet Per Minute
Best Sellers Rank	#45,575 in Computers ( See Top 100 in Computers ) #370 in Computer Case Fans
Brand Name	AC Infinity
Compatible Devices	Amplifier
Cooling Method	Air
Customer Reviews	4.6 4.6 out of 5 stars (2,846)
Global Trade Identification Number	00854759004365
Item Dimensions L x W x H	25L x 140W x 140H millimeters
Item Weight	0.02 Pounds
Manufacturer	AC Infinity
Material Type	Rubber
Maximum Rotational Speed	2000 RPM
Model	AI-MPF140A
Noise Level	18 Decibels
Number of Items	1
Part Number	FBA_AI-MPF140A
Power Connector Type	4-Pin
UPC	854759004365
Unit Count	1 Count
Voltage	5 Volts
Wattage	1.5 watts

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244.57 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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