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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12038 120mm x 38mm PWM Computer PC Case Fan 12V 4pin 5300rpm 230CFM | 4pin High CFM PC Fan Pressure Big Airflow Duall Ball DC Brushless Cooling Fan 120mm x 38mm for extreme PC and server cooling

Product ID: 139075285

Details

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

⚡5300 RPM max speed

💨230 CFM airflow

🔄PWM 4-pin smart control

€ 51.19

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

❄️ Stay Frosty, Stay Ahead — Cool Like a Pro

BUILT TO LAST - Dual-ball bearings rated for 67,000 hours ensure relentless performance and durability.
TURBOCHARGED RPM - Spins up to 5300 RPM for extreme ventilation when your system demands it most.
SMART SPEED CONTROL - 4-pin PWM connector enables dynamic fan speed adjustment based on temperature—efficiency meets silence.
VERSATILE FIT MOUNT - Generous 38mm thickness and included mounting hardware make installation a breeze for gaming PCs, mining rigs, and servers.
UNMATCHED COOLING POWER - Delivers a massive 230 CFM airflow to keep your rig ice-cold under pressure.

The Wathai 12038 is a high-performance 120mm x 38mm PWM computer case fan engineered for extreme cooling needs. Operating at 12V with a powerful 5300 RPM speed, it delivers an impressive 230 CFM airflow while intelligently adjusting speed via its 4-pin PWM connector. Designed with durable dual-ball bearings rated for 67,000 hours, this fan is ideal for gaming PCs, mining rigs, and server chassis requiring robust ventilation and long-lasting reliability.

Specifications

ASIN	B07SGWNV5J
Air Flow Capacity	530 Cubic Feet Per Minute
Best Sellers Rank	#45,922 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #13 in Electronic Cooling Fans #181 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 (1,146)
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 Decibels
Number of Items	1
Part Number	12038B12V4P2A
Power Connector Type	4-Pin
UPC	702334356784
Unit Count	1.0 Count
Voltage	12 Volts (DC)
Wattage	22.8 watts

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