Can it be used on a outside inflatable

Yes, I bought it for a large inflatable snowman but it wasnt powerful enough. Probably fine for a 4 foot one.

What in the minium dc volt operating range?

I'm using it at 6v and it is working perfectly for my purpose (Powered air respirator). Below 4.5v it struggles.

Would this work on a Lenovo M720q tiny computer?

I used in an inflatable yard decoration. You would have to measure and check the requirements of your machine.

I need to know which cable is positive and which is negative since they're both black cables? What voltage and amperage does this product run at?

This device is powered by 110vAC, so their is no "positive" and/or "negative" connection. As per the specifications in the AMAZON notes, "4w".

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Wathai 120mm x 32mm 12V Brushless Cooling Blower Fan DC Centrifugal Fan 2p

Product ID: 135224236

Details

Brand
Wathai
Cooling Method
cooling
Material
Plastic
Maximum Rotational Speed
3000 per week
Noise Level
45 db
Power Connector Type
2-Pin

⚡12V brushless motor

💨38.5 CFM airflow

🔇45 dBA low noise

AED 101

Duties & taxes included

In stock

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Description

💨 Stay cool, stay ahead — power your gear with silent strength!

DURABLE SLEEVE BEARING - Ensures up to 35,000 hours of reliable cooling for your tech essentials.
WHISPER QUIET OPERATION - Runs at just 45 dBA, perfect for noise-sensitive environments.
HIGH AIRFLOW AT 3000 RPM - Keeps your devices cool with a robust 38.5 CFM air push.
POWERFUL 12 V BRUSHLESS MOTOR - Delivers efficient, long-lasting performance with minimal maintenance.
VERSATILE DIY FRIENDLY DESIGN - Easily modifiable connector and compact 120mm size fit multiple applications.

The Wathai 120mm x 32mm 12V Brushless Cooling Blower Fan is a compact, high-performance centrifugal fan designed for efficient cooling of electronics like PCs, amplifiers, and home entertainment devices. Featuring a 12V brushless motor, it delivers 38.5 CFM airflow at 3000 RPM while maintaining a quiet 45 dBA noise level. Its durable sleeve bearing supports up to 35,000 hours of operation, making it a reliable choice for DIY enthusiasts and professionals seeking effective thermal management.

Specifications

ASIN	B07RMJC9NT
Air Flow Capacity	38.5 cfm
Best Sellers Rank	#161 in Computer Case Fans
Brand Name	Wathai
Compatible Devices	inflatable fan replacement, radiator Amplifier Desktop Gaming Console Inverter Laptop Printer Projector Refrigerator Router Server Smartphone Switch Tablet Television
Cooling Method	cooling
Customer Reviews	4.3 4.3 out of 5 stars (1,058)
Item Dimensions L x W x H	4.72"L x 1.26"W x 4.72"H
Item Highlight	High Airflow 3000RPM blower fan 12v for PC Computer Case, PSU, Car Audio, RV Fridge
Item Weight	6.75 ounces
Manufacturer	Wathai
Material Type	Plastic
Maximum Rotational Speed	3000 revolutions per week
Model	Wathai
Noise Level	45 db
Number of Items	1
Number of Packs	1
Part Number	Wathai
Power Connector Type	2-Pin
UPC	702334356746
Unit Count	1 Count
Voltage	12 volts_of_direct_current
Wattage	12.3 watts

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