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Noctua

Q: How many cfm, or cubic feet per minute?

Google says "120,2 cubic meters per hour to cubic feet per minute = 70,747049 (cubic feet) per minute." I can type that in with the best of them.

Q: Is this an airflow fan or a static pressure fan?

The fan blades are shaped for static pressure. https://www.amazon.com/dp/B00KF7PPY4/ref=psdc_11036291_t1_B07CG2PGY6 are shaped for airflow. These are static optimized fans

Q: If I want to only use two wires on this fan for max speed, which leads should I use green / black ?

Here's some info that might help you, and should answer that question giving you some confidence... that extra pin on a 4 pin fan is the digital speed control -- this is why the fan goes at max speed if plugged into a 3 pin connector (letting the 4th pin just hang over the side), rather than a a 4 pin connector. Pin number 3 is what tells your motherboard the rotations per minute (RPM) of the fan. So, all that you are left with is the first two pins. The first pin is ground (almost always black) and the second pin is the power (it's 12 volts, but you can get 5 volts from the a custom connector from the power supply instead of the 4 pin motherboard connector if you want to have a slower fan). Here's a chart: For 4-Wire Pulse Width Modulation (PWM) Controlled Fans Pin Name Description Wire color(usual) 1 GND Ground black 2 +12V Fan Power yellow 3 SIGNAL Fan RPM green 4 PWM Digital Control blue So to answer your question, yes it is possible to just use the first two pins (regardless of color, although the first one is almost always black, but the color of the second one is not always the same).

Q: Will the pwm control on this fan stop it completely even with power to +12v/gnd?

On my motherboard (ASUS X99-E WS), can't speak for any other motherboards, any percentage below 50% results in no movement, giving you only really adjustment between 50-100%. I found this somewhat frustrating, but I do prefer this to them never coming to a complete stop.

Product ID: 63275406

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Details

Product dimensions
12L x 12W x
Brand
Noctua
Power connector type
4-Pin
Voltage
12 Volts
Wattage
1.08 watts
Cooling method
Air

⏳150,000+ hours MTTF reliability

🌀1700 RPM high-speed airflow

🔇Ultra-quiet max 25.1 dB(A)

Frequently Bought Together

Noctua NF-P12 redux-1700 PWM, High Performance Cooling Fan, 4-Pin, 1700 RPM (120mm, Grey)

Noctua NF-P14s redux-1500 PWM, High Performance Cooling Fan, 4-Pin, 1500 RPM (140mm, Grey)

Cable Matters 2-Pack 3 Way 4 Pin PWM Fan Splitter Cable - 12 Inches / 30cm, 1x PWM-Controlled Fan with 2 Follower Fans, PC Fan Splitter 1 to 3 Converter, PC-Fan Extension Cable

Description

🌀 Stay cool, stay ahead — the fan that works as hard as you do.

SMART PWM CONTROL - 4-pin PWM enables dynamic speed adjustment for peak performance and silent idling
COMPACT YET MIGHTY - 120x120x25 mm size fits seamlessly into any build without compromising airflow
AWARD WINNING LEGACY - Trusted by pros worldwide with 100+ accolades and hundreds of thousands of users
VALUE PACKED REDUX EDITION - Proven Noctua quality at an accessible price, plus versatile accessory options
PRECISION ENGINEERED AIRFLOW - Pressure-optimized blades deliver powerful cooling with whisper-quiet operation

The Noctua NF-P12 redux-1700 PWM is a high-performance 120mm cooling fan featuring a 1700 RPM max speed, ultra-quiet operation at 25.1 dB(A), and exceptional durability with over 150,000 hours mean time to failure. Its pressure-optimized blade design ensures efficient cooling for CPUs, radiators, and chassis, while 4-pin PWM support allows seamless motherboard speed control. This streamlined redux edition offers Noctua’s renowned quality and reliability at a competitive price, making it a top choice for professionals seeking silent, powerful cooling solutions.

Specifications

Brand	Noctua
Product Dimensions	12 x 12 x 2.5 cm; 125 g
Item model number	NF-P12 redux 1700 PWM
Manufacturer	Noctua
Series	NF-P12 redux-1700 PWM
Colour	Grigio
Voltage	12 Volts
Wattage	1.08 watts
Are Batteries Included	No
Item Weight	125 g
Guaranteed software updates until	unknown

Have a Question? See What Others Asked

How many cfm, or cubic feet per minute?

Is this an airflow fan or a static pressure fan?

If I want to only use two wires on this fan for max speed, which leads should I use green / black ?

Will the pwm control on this fan stop it completely even with power to +12v/gnd?

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