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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AC INFINITY MULTIFAN S7 DUAL USB COOLING FANS | UL-Certified, for Receiver, DVR, PlayStation, Xbox, Computer Cabinet Cooling

AC INFINITY MULTIFAN S7 DUAL USB COOLING FANS | UL-Certified, 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

⏳67,000 hrs dual-ball bearing lifespan

💨104 CFM airflow - powerful cooling

🔇19 dBA noise - ultra-quiet operation

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Description

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

VERSATILE PLACEMENT - Lay flat or stand upright to fit any setup seamlessly.
PLUG PLAY USB POWER - Effortless USB connectivity powers your fans from consoles or AV devices.
WHISPER QUIET COOLING - Keep your gear chill without the noise distraction.
PRECISION SPEED CONTROL - Customize airflow with multi-speed settings for perfect balance.
DURABLE DUAL BALL BEARINGS - Engineered for longevity—67,000 hours of reliable performance.

The AC Infinity MULTIFAN S7 features dual UL-certified USB fans delivering 104 CFM airflow at whisper-quiet 19 dBA noise levels. With durable dual-ball bearings rated for 67,000 hours, multi-speed control, and versatile placement options, it’s the ultimate cooling solution for gaming consoles, DVRs, and computer cabinets powered conveniently via USB.

Specifications

ASIN	B00JLV4BWC
Air Flow Capacity	104 cfm
Best Sellers Rank	#18 in USB Fans
Brand Name	AC Infinity
Compatible Devices	Gaming Console
Cooling Method	Air
Customer Reviews	4.7 4.7 out of 5 stars (8,100)
Included Components	item
Item Dimensions L x W x H	4.7"L x 1"W x 4.7"H
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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₩66527

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