AC Infinity MULTIFAN S4 静音 140mm USB Fan 冷却ファン UL認定済み受信機 DVR プレイステーション Xbox パソコンキャビネット冷却デュアルバージョン

AC Infinity MULTIFAN S4 静音 140mm USB Fan 冷却ファン UL認定済み受信機 DVR プレイステーション Xbox パソコンキャビネット冷却デュアルバージョン

Q: 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.

Q: 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.

Q: 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.

Q: 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?

Product ID: 750682100

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Details

Product Dimensions
14.5L x 4.6W x
Brand
AC Infinity
Power Connector Type
4-Pin
Voltage
5 Volts
Wattage
1.5 W
Cooling Method
Air

⏳67,000 hrs dual ball bearing life

🌀57 CFM airflow

🔇Ultra-quiet 18 dBA noise

Frequently Bought Together

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

AC Infinity Turbo Fan Power Adapter, for MULTIFAN Series USB Fans

AC Infinity MULTIFAN S3, Quiet 120mm USB Fan, UL-Certified for Receiver DVR PlayStation Xbox Computer Cabinet Cooling

Description

🆒 Stay cool, stay ahead — silence and power in perfect harmony.

DURABILITY THAT LASTS - Dual ball bearings rated for 67,000 hours of reliable operation.
WHISPER QUIET COOLING - Keep your workspace zen with barely-there 18 dBA noise levels.
POWERFUL 57 CFM AIRFLOW - Maximize your device’s lifespan with efficient, targeted cooling.
FLEXIBLE USB POWERED DESIGN - Plug into any USB port on your AV gear or gaming consoles—no extra adapters needed.
MODULAR DAISY CHAIN CAPABILITY - Connect up to 4 fans on one USB power source for scalable cooling power.

The AC Infinity MULTIFAN S4 is a UL-listed, ultra-quiet 140mm USB cooling fan delivering 57 CFM airflow at just 18 dBA noise. Featuring a multi-speed controller and durable dual ball bearings rated for 67,000 hours, it offers flexible horizontal or vertical mounting. Powered via USB, it supports daisy chaining up to 4 fans for enhanced cooling of electronics like gaming consoles, DVRs, and AV equipment, all while meeting CE, RoHS, and UL safety certifications.

Specifications

Manufacturer	AC Infinity
Part number	FBA_AI-MPF140A
Item Weight	9.07 g
Product Dimensions	2.54 x 13.97 x 13.97 cm; 9.07 g
Is Discontinued By Manufacturer	No
Size	140 mm
Color	Black
Material	Rubber
Voltage	5 Volts
Wattage	1.5 W
Airflow	57 Cubic Feet Per Minute
Noise Level	18 dB
Specification met	Ce/Rohs/Tuv/Ul
Batteries Included	No
Batteries Required?	No
Item Dimensions LxWxH	25 x 140 x 140 mm

Have a Question? See What Others Asked

What is the rpm on these?

How many watts does it consume?

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?

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?

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