Is this one 4pin PWM one fan, the same as the value 5 pack?

I do believe these are the same so long as you're not asking about the CO version. I purchased the 5 fan value pack, these are listed as 4 pin, but are really 3 pin in a 4 pin configuration. That's power, ground and a PWM signal for fan control. They also have the 4 pin socket for daisy-chaining, but of course the vacant pin location will produce an unused socket. It's a straight-through connection since all the fans work on the same electrical design. Mine plugged right into the motherboard fan headers and are currently being speed-controlled by the system as I write this and they have remained matched with the other fans in terms of speed. Even under load my motherboard hasn't ever amped these to max, and my CPU has remained below 70C even under the heaviest loads. I have an ASUS motherboard if that helps. Oh, and very quiet.

Are screws includes with the fans to mount them on the case?

Metal self-tapping screws are included, don't unscrew it too many times, the frame of fan might not be able to handle it.

Can the p14 pwm be powered by an external 12v dc power source for a non pc diy project ?

Yes... for example this product will plug in CRJ DC Power Supply for 2 x 3/4-Pin 12V Computer PC Case Fans https://www.amazon.com/dp/B071FNN9W7/

The title says "arctic p14 pwm pst" but then in the style it says "p12 pwm pst white" then in the description it says "p14 pwm pst" so p12 or p14

The P14 is the 140mm version. The P12 is the 120mm.

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P14 PWM PST (5 Pack) - PC Fans, 140mm Case Fan with PWM Sharing Technology (PST), Pressure-optimised, Quiet Motor, Computer, Fan Speed: 200–1700 RPM (0 RPM <5%) - Black

P14 PWM PST (5 Pack) - PC Fans, 140mm Case Fan with PWM Sharing Technology (PST), Pressure-optimised, Quiet Motor, Computer, Fan Speed: 200–1700 RPM (0 RPM <5%) - Black

Product ID: 112501064

Details

Brand
ARCTIC
Compatible Devices
Desktop
Cooling Method
Air
Material
Polycarbonate
Maximum Rotational Speed
1700 rpm
Noise Level
3 db

🔇0.3 Sone ultra-quiet noise

⚙️200–1700 RPM speed range

🌬️72.8 CFM airflow

S$116

Duties & taxes included

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Description

❄️ Keep your cool with Arctic precision – silence and power in perfect harmony!

SMART PWM SHARING TECH - 4-pin PWM PST lets you fine-tune fan speeds dynamically, balancing whisper-quiet operation with peak performance when it counts.
NEXT GEN MAGNETIC MOTOR - Powered by advanced Neodym-Iron-Boron magnets for superior efficiency and longer-lasting, cooler operation.
5 PACK VALUE VERSATILITY - Bundle up with five high-performance 140mm fans, ideal for multi-fan setups and future-proofing your build.
PRESSURE OPTIMIZED COOLING - Engineered for maximum static pressure, perfect for heatsinks and radiators to keep your rig chill under pressure.
EXTENDED LIFESPAN GUARANTEE - Runs 10°C cooler to double fan life—invest once, enjoy years of silent, reliable airflow.

The ARCTIC P14 PWM PST 5-pack features 140mm case fans optimized for static pressure, delivering up to 72.8 CFM airflow at speeds from 200 to 1700 RPM. Equipped with PWM Sharing Technology for precise speed control and a next-gen Neodym-Iron-Boron magnet motor, these fans run ultra-quietly at 0.3 Sone noise levels while maintaining cooler motor temperatures to extend lifespan. Ideal for heatsinks, radiators, and multi-fan PC builds, this pack offers professional-grade cooling with a 6-year warranty.

Specifications

ASIN	B07HCKWF2X
Air Flow Capacity	73 cfm
Best Sellers Rank	#107 in Computer CPU Cooling Fans #211 in Computer Case Fans
Brand Name	ARCTIC
Compatible Devices	Desktop
Cooling Method	Air
Customer Reviews	4.6 4.6 out of 5 stars (1,848)
Global Trade Identification Number	00840033401043, 00872767009547, 04895213701600
Included Components	P14 PWM PST, 5 Pack
Item Dimensions L x W x H	5.51"L x 5.51"W x 1.06"H
Item Weight	970 g
Manufacturer	ARCTIC
Material Type	Polycarbonate
Maximum Rotational Speed	1700 rpm
Model	ACFAN00138A
Noise Level	3 db
Number of Items	5
Part Number	ACFAN00138A
Power Connector Type	4-Pin
UPC	872767009547 840033401043
Unit Count	5 Count
Voltage	12 volts
Warranty Description	6 years
Wattage	1.44 watts

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