Is this a regular box fan

I'm a regular boxing fan. I like MMA too.

Has anyone experienced a clicking motor noise caused by PWM ?

It is because you have it hooked up to a 3 pin source. PWM, 4 pin fans, run at 12 volts all the time. The fourth cable is what controls the speed. 3 pin fans use variable voltage to control RPMs. You need to use a 4 pin source or run it at full speed, 12 volts, or you will always have clicking.

can i used this fan to my corsair h110i that have factory fan

I have 4 of the 120mm fans in my h100i, I cannot imagine why the 140mm fans would not work in the h110i, you just have to use the screws corsair provided you. I will say though that you will be very surprised by just how quite these fans are while providing the same cooling performance as the stock Corsair fans.

Would like to get 2 intake front fans. Would like to know which would be better for airflow these or NF-A14 FLX. Thanks!

They are essentially the same fan the NF-A14 PWM and the NF-A14 FLX. The difference is that the PWM can be controlled by software on your system through your motherboards resources. Most modern motherboards have the 4 pin connector and support. The NF-A14 FLX is controlled by adapters that are included in the kit. There are usually 3 adapters. They controller the air flow on the FLX model. I have used both and I usually prefer the PWM model because I can set thresholds in my system when temps get hot and can cool my system down faster automatically.

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NF-A14 PWM, Premium Quiet Fan, 4-Pin (140mm, Brown)

Product ID: 254074441

Details

Brand
Noctua
Power connector type
4-Pin
Product dimensions
25L x 140W x
Voltage
12 Volts
Wattage
1.56

⏳150,000+ hours MTTF

🌀140mm high airflow

🔇Ultra-quiet 24.6 dB(A)

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COP 315334

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Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌀 Stay cool, stay ahead — silence and power in perfect harmony.

BUILT TO LAST - Engineered with fibre-glass reinforced PBT and a 150,000-hour MTTF rating for unmatched durability and reliability.
PRECISION PWM CONTROL - 4-pin PWM allows seamless speed adjustments up to 1500 RPM for efficient, customized cooling performance.
WHISPER QUIET COOLING - Experience premium silence with noise levels as low as 24.6 dB(A), perfect for focused work or gaming marathons.
VERSATILE COMPATIBILITY - Square frame design fits perfectly in water cooling radiators, PC cases, and cabinet ventilation setups.
OPTIMIZED AIRFLOW DYNAMICS - 140.2 m³/h airflow powered by advanced Flow Acceleration Channels ensures your system stays cool under pressure.

The Noctua NF-A14 PWM is a premium 140mm quiet fan featuring advanced acoustic optimization and Flow Acceleration Channels. It delivers high airflow at a whisper-quiet 24.6 dB(A), with a durable design rated for over 150,000 hours of operation. Its 4-pin PWM control ensures precise speed management, making it ideal for PC cases, water cooling radiators, and versatile ventilation needs.

Specifications

ASIN	B00CP6QLY6
Air Flow Capacity	140.2 Cubic Meters Per Hour
Best Sellers Rank	#48,260 in Computers ( See Top 100 in Computers ) #405 in Computer Case Fans
Brand Name	Noctua
Compatible Devices	['Computer', 'PC']
Cooling Method	Air
Customer Reviews	4.8 4.8 out of 5 stars (5,923)
Global Trade Identification Number	00842431014337, 04716123314981, 08510052851694
Item Dimensions L x W x H	25L x 140W x 140H millimeters
Item Weight	0.2 Kilograms
Manufacturer	Noctua
Material Type	Fibre-glass reinforced PBT
Maximum Rotational Speed	1500 RPM
Model	NF-A14 PWM
Noise Level	24.6 Decibels
Number of Items	1
Part Number	NF-A14 PWM
Power Connector Type	4-Pin
UPC	897337035856 807320183174 863121543135 846764214280 782386480576 842431014337 841501190025 731215278051
Unit Count	1 Count
Voltage	12 Volts
Wattage	1.56

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COP 315334

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In stock

Sold byAmazon ColombiaDelivered 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 Colombia.

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