Is this unit ul tested, if yes, to what standard. if not, what standards has it been tested?

UL 507 is the relevant standard for electric fans, however this fan was not tested by UL. Also important to note that UL Listed products are tested while UL Recognized products are not tested. Both levels require a direct marking on the part which means this fan has neither level. To be honest most fans at this price level are not going to be agency tested just because the target market is PC case fans, and the things UL tests for are not relevant to PC builders. The fan has CE certification which is just saying it won't burn your house down. CE doesn't check fans for performance; you're better off reading reviews than looking for agency approvals if this is a PC fan.

will this fan work with just pos & neg hooked up? do I need all for wires hooked up to work ? thanks

Will work with just pos and neg.

If I plan to use more than 50% capacity of the 5300rpm model, would I need to connect it to a controller/hub rated for more than 1amp per lane?

I would make sure that which ever Fan Port you connect this High Airflow Fan that it will support the amperage stated in the specs of the fan.

Any water or dust resistance rating? ip52, ip67?

I do not see any water/dust proof rating printed, however, I use this fan as a range-top exhaust fan in suction mode, so all cooking steam & grease-laden fumes are drawn across/through the fan... daily. Thus far, it has performed flawlessly, despite the harsh environment. I recommend this fan.

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🌬️ Cool down or heat up the competition!

WHISPER OR ROAR - Adjustable speed settings let you choose between silent operation and maximum airflow.
AIRFLOW CHAMPION - Maximize your setup with an impressive 230 CFM airflow, perfect for high-demand systems.
UNLEASH THE POWER - Experience a staggering 5300 RPM speed for ultimate cooling performance.
DURABILITY MEETS DESIGN - Enjoy a long-lasting lifespan of 67,000 hours with dual-ball bearings for reliable operation.
VERSATILE COMPATIBILITY - Ideal for gaming PCs, mining rigs, and server cases—your cooling solution for every project.

The Wathai 12038 120mm x 38mm PWM Computer Case Fan is engineered for high-performance cooling with a powerful 5300 RPM speed and 230 CFM airflow. Designed for versatility, it fits various applications from gaming PCs to mining machines, ensuring optimal temperature control. With a robust lifespan of 67,000 hours and dual-ball bearings, this fan is built to last. Plus, it comes with a one-year warranty for peace of mind.

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Manufacturer	Wathai
Part number	12038B12V4P2A
Item Weight	390 g
Product Dimensions	3.81 x 11.99 x 11.99 cm; 390 g
Item model number	12038B12V4P2A
Colour	120x38mm 12V Ball 4P
Style	12V 4Pin Ball
Material	Lead
Voltage	12 Volts (DC)
Wattage	22.8 watts
Item Package Quantity	1
Noise Level	58 dB
Batteries included?	No
Batteries Required?	No

WathaiPWM 12038 120mm*38mm Computer Case Fan 12V 4 Pin 5300RPM High Air Flow Dual Ball CFM FG DC Brushless Cooling Fan

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