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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💨 Stay cool, stay ahead — power your tech with Wathai’s high-performance blower fan!

DIY FRIENDLY DESIGN - Easily customize power connections with a cut-and-solder option for seamless integration.
LONG LASTING DURABILITY - Sleeve bearing design ensures up to 35,000 hours of reliable, maintenance-free operation.
ULTRA QUIET PERFORMANCE - Maintain focus with whisper-quiet 45dBA noise levels—no distractions, just cool efficiency.
VERSATILE COMPATIBILITY - Perfectly engineered for desktops, gaming consoles, routers, and more—your all-in-one cooling solution.
TURBOCHARGED 3000 RPM SPEED - Experience rapid airflow that keeps your devices cool under pressure.

The Wathai 120mm x 32mm 12V DC brushless blower fan delivers powerful 38.5 CFM airflow at a quiet 45dBA noise level. Operating at 3000RPM with a durable sleeve bearing, it offers up to 35,000 hours of reliable cooling for desktops, gaming consoles, routers, and other electronics. Compact and DIY-friendly, it includes mounting hardware and flexible power options for seamless integration.

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Brand	Wathai
Model Number	Wathai
Product Dimensions	11.99 x 11.99 x 3.2 cm; 191.36 g
Power / Wattage	12.3 watts
Voltage	12 Volts (DC)
Material	Plastic
Noise Level	45 dB
Compatible Models	Desktop, Gaming Console, Server
Item Weight	191 g

Wathai120mm x 32mm 12V High Airflow DC Brushless Blower Fan for Radiator, Desktops, Gaming Consoles, TVs, Routers, Computers

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