how much power do they pull? im worried about battery drain

2.9 Watts .58 Amps Per fan. 3 to 7 volt DC. 52 CFM per fan. 1300 RPM. This is directly off the product tech page.

Does the dual 120mm model come with an AC adapter?

Bad answers, or not up to date. This is USB powered but there is a dual 1200mm fan AC version , same company for a few bucks more.

Can these be powered by an external battery pack?

Yes you can power them using an external USB battery pack (power bank). I have the two fans plugged into a USB power bank, with the adjustable inline switch on "H" High, and they draw approximately 0.45A or ~2.25W total. In theory a 10,000 mAh power bank can run these two fans on high for ~ 20 hours.

What is the cord length between the fans please? Thanks...

Seems to be approximately 30 inches.

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MULTIFAN S7, Ultra-Quiet Dual 120mm USB Fan w/ Speed Controller | UL-Certified, Dual-Ball Bearings, Noise-Absorption Pads for Receiver DVR, PlayStation, Xbox, Computer, Cabinet Cooling

Product ID: 4194041

Details

Brand
AC Infinity
Compatible Devices
Gaming Console
Cooling Method
Air
Material
Rubber
Maximum Rotational Speed
1300 rpm
Noise Level
19 db

🌀104 CFM airflow

🔇Ultra-quiet 19 dBA noise

🔋67,000 hrs dual ball bearing lifespan

15.90 OMR

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Description

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

PRECISION SPEED CONTROL - Multi-speed controller lets you dial in the perfect balance of airflow and silence.
FLEXIBLE PLACEMENT DESIGN - Lay flat or stand upright with rubber feet and protective metal grates for versatile setup.
DURABLE DUAL BALL BEARINGS - Engineered for longevity with 67,000 hours of reliable, vibration-free operation.
PLUG PLAY USB CONVENIENCE - Powered directly from your device’s USB port—no extra adapters needed.
WHISPER QUIET COOLING POWER - Ultra-quiet 19 dBA noise keeps your workspace serene while maximizing airflow.

The AC Infinity MULTIFAN S7 is a UL-certified dual 120mm USB fan system delivering 104 CFM airflow at an ultra-quiet 19 dBA noise level. Featuring a multi-speed controller and durable dual-ball bearings rated for 67,000 hours, it offers flexible placement and USB-powered convenience to efficiently cool gaming consoles, AV equipment, and computer cabinets—extending device lifespan while maintaining a peaceful environment.

Specifications

ASIN	B00JLV4BWC
Air Flow Capacity	104 cfm
Best Sellers Rank	#15 in USB Fans
Brand Name	AC Infinity
Compatible Devices	Gaming Console
Cooling Method	Air
Customer Reviews	4.7 4.7 out of 5 stars (8,120)
Included Components	item
Item Dimensions L x W x H	4.7"L x 1"W x 4.7"H
Item Highlight	UL-Certified, Dual-Ball Bearings, Noise-Absorption Pads for Receiver DVR, PlayStation, Xbox, Computer, Cabinet Cooling
Manufacturer	AC Infinity
Material Type	Rubber
Maximum Rotational Speed	1300 rpm
Model	AI-MPF120A2
Noise Level	19 db
Number of Items	1
Part Number	ACAIMPF120A2
Power Connector Type	2-Pin
UPC	854759004341
Unit Count	1 Count
Voltage	12 volts
Wattage	5 watts

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