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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Wathai 120mm x 32mm 12V Brushless Cooling Blower Fan DC Centrifugal Fan 2p | High Airflow 3000RPM blower fan 12v for PC Computer Case, PSU, Car Audio, RV Fridge

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 power

💨38.5 CFM high airflow

🔇45dBA whisper-quiet

¥6458

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Description

💨 Stay cool, stay ahead — power your gear with Wathai’s silent airflow revolution!

DIY READY FLEXIBILITY - Easily customize power connections with a cut-and-solder friendly design for versatile installation.
ULTRA QUIET OPERATION - Keep your workspace or entertainment zone distraction-free with noise levels as low as 45dBA.
LONG LASTING DURABILITY - Sleeve bearing technology ensures up to 35,000 hours of reliable, maintenance-free cooling.
TURBOCHARGED 3000 RPM SPIN - Experience rapid cooling with a high-speed brushless motor designed for peak performance.
PRECISION 120 MM CENTRIFUGAL DESIGN - Compact yet powerful size fits seamlessly into your PC, car audio, or RV fridge setups.

The Wathai 120mm x 32mm 12V Brushless Cooling Blower Fan delivers a robust 38.5 CFM airflow at 3000 RPM with whisper-quiet 45dBA noise levels. Designed for versatile use in PCs, car audio systems, RV fridges, and more, it features a durable sleeve bearing for 35,000 hours of operation and a DIY-friendly connector for easy customization. Compact, powerful, and reliable — the ultimate cooling solution for tech-savvy professionals.

Specifications

ASIN	B07RMJC9NT
Air Flow Capacity	38.5 cfm
Best Sellers Rank	#123 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 (1,049)
Item Dimensions L x W x H	4.72"L x 1.26"W x 4.72"H
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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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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¥6458

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Best international shipping I've ever tried. Worth every penny!

3 days ago

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The delivery time was excellent, and the packaging was secure.

2 months ago

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