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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4.72inch 4Pin

Product ID: 139075285

Details

Brand
Wathai
Compatible Devices
Desktop Gaming
Cooling Method
cooling
Material
Plastic
Maximum Rotational Speed
5300 rpm
Noise Level
58 db

💨230 CFM airflow

⚙️5300 RPM max speed

🛡️67,000 hrs dual ball bearing lifespan

€ 59.66

Duties & taxes included

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Sold byAmazon FinlandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

❄️ Cool your tech like a pro — don’t let heat slow your hustle!

TURBOCHARGED RPM - Spins up to 5300 RPM for extreme cooling performance when it matters most.
SMART PWM CONTROL - Intelligent 4-pin PWM lets you dial fan speed based on temperature for whisper-quiet efficiency.
DURABILITY THAT LASTS - Dual ball bearings ensure a rock-solid 67,000-hour lifespan for relentless reliability.
UNMATCHED AIRFLOW POWER - Delivers a massive 230 CFM to keep your rig ice-cold under pressure.
VERSATILE MOUNTING COMPATIBILITY - Sized at 120x120x38mm, fits gaming PCs, servers, mining rigs, and Antminer chassis with ease.

The Wathai 12038 is a high-performance 120mm PWM computer case fan featuring a powerful 230 CFM airflow and a blazing 5300 RPM speed. Equipped with durable dual ball bearings rated for 67,000 hours, it offers reliable, long-lasting cooling ideal for gaming PCs, servers, and mining rigs. Its smart 4-pin PWM control enables dynamic speed adjustment based on temperature, balancing maximum airflow with noise management.

Specifications

ASIN	B07SGWNV5J
Air Flow Capacity	530 cfm
Best Sellers Rank	#39,634 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #17 in Electronic Cooling Fans #79 in Computer Case Fans
Brand Name	Wathai
Compatible Devices	Desktop, Gaming Console, Inverter, Server, computer case
Cooling Method	cooling
Customer Reviews	4.5 4.5 out of 5 stars (479)
Item Dimensions L x W x H	4.72"L x 4.72"W x 1.5"H
Manufacturer	Wathai
Material Type	Plastic
Maximum Rotational Speed	5300 rpm
Model	12038B12V4P2A
Noise Level	58 db
Number of Items	1
Number of Packs	1
Part Number	12038B12V4P2A
Power Connector Type	4-Pin
UPC	702334356784
Unit Count	1 Count
Voltage	12 volts_of_direct_current
Wattage	22.8 watts

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