Hi, should I get this or the Noctua NF-F12 for a case fan? Thanks.

If your fan location doesn't have any filters or obstructions then the S12a will be what you want, but if it does have any sort of filter, or resistance the fan has to pull through, you'll want an NF-P12. Several reviews have remarked that in a resistance based location the P12 works just as well as the F12, and does so with less noise. The F12 would only be better for high temp heatsinks with its higher RPM range.I personally own all 3 types and have an F12 on my CPU heatsink, 2 P12 fans as intakes that are behind a dust filter, and 1 S12a as a rear exhaust. I previously used 2 S12as as the intakes but they were really loud behind the filters.

What is the difference between the PWM, the ULN and the FLX versions?

PWM is the most standard version. People who want to push a little extra air but still stay quiet and keep up with a mild overclock, these are also 4 pin.ULN is targeting users who hate sound. These are lower voltage and push less air.FLX is the dynamic fan, you can run it a little higher or lower watt and push a littler higher or lower air.Personally I can't see any reason to use anything but PWM. They even come with a free adapter to lower the voltage if for some insane reason this already super quiet fan isn't quiet enough.

What is the cfm at min and max rpms?

For a given RPM there is a performance curve; Maximum CFM at minimum static pressure, minimum CFM at maximum static pressure and all the points in between.

Are these sealed bearing fans?

From the Noctua FAQ:In order to ensure flawless operation over many years of usage, all Noctua fans come with a premium grade SSO bearing, which is fully sealed to prevent the entering of fine dust particles. Please note that the fan is not designed to be taken apart by the user. Removing the impeller from the frame will break the sealing of the bearing and results in a loss of warranty.

Deliver to Panama

For best experience Get the App

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan
KOREA

Customer Services

About Us

Customer Support

Noctua NF-S12A PWM, Premium Quiet Fan, 4-Pin (120mm, Brown)

Noctua NF-S12A PWM, Premium Quiet Fan, 4-Pin (120mm, Brown)

Product ID: 81820043

Secure Transaction

Details

Product Dimensions
4.72"L x x
Brand
Noctua
Power Connector Type
4-Pin
Voltage
12 Volts
Cooling Method
Air
Compatible Devices
Desktop

🌀120mm high-efficiency airflow

🔇Ultra-quiet max 17.8 dB(A)

⚙️4-pin PWM for smart speed control

Description

🖥️ Cool your rig, not your vibe — silent power in every spin!

DURABILITY THAT LASTS - Engineered with >150,000 hours MTTF for reliable, long-term performance you can trust.
PRECISION PWM CONTROL - Seamlessly adjust fan speed from 300 to 1200 RPM for tailored cooling and energy efficiency.
WHISPER QUIET COOLING - Experience near-silent airflow with advanced acoustic optimization, perfect for focused work or gaming marathons.
VIBRATION FREE OPERATION - Includes anti-vibration mounts to keep your setup stable and noise-free, enhancing your workspace vibe.
COMPLETE INSTALLATION KIT - Comes with Low-Noise Adaptor, extension, and y-cable for flexible, hassle-free multi-fan setups.

The Noctua NF-S12A PWM is a premium 120mm PC cooling fan featuring a 4-pin PWM connector for automatic speed control between 300-1200 RPM. Designed with advanced acoustic optimization and anti-stall technology, it delivers efficient airflow at an ultra-quiet 17.8 dB(A). Built for durability with over 150,000 hours MTTF, it includes anti-vibration mounts and accessories for easy, versatile installation in desktop systems.

Specifications

Product Dimensions	4.72"L x 4.72"W x 0.98"H
Brand	Noctua
Power Connector Type	4-Pin
Voltage	12 Volts
Cooling Method	Air
Compatible Devices	Desktop
Noise Level	17.8 dB
Material	Fibre-glass reinforced PBT
Maximum Rotational Speed	1200 RPM
Air Flow Capacity	107.5 CMPH
UPC	808111663660 863121543098 731215276828 846764214297 807320183181 842431014252 809394261574 803982961709
Global Trade Identification Number	04716123314929
Manufacturer	Noctua
Number of Items	1
Item model number	NF-S12A PWM
Item Weight	6.4 ounces
Item Dimensions LxWxH	8.5 x 1.5 x 6 inches
Color	Brown
Computer Memory Type	DIMM
ASIN	B00BEZZBFO
Is Discontinued By Manufacturer	No
Date First Available	March 15, 2013

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products