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Noctua NF-A6x25 5V, Premium Quiet Fan, 3-Pin, 5V Version (60mm, Brown)
Purchase options and add-ons
Product Dimensions | 6L x 6W x 2.5H Centimetres |
Brand | Noctua |
Power connector type | 3-Pin |
Voltage | 5 Volts |
Cooling method | Air |
Compatible devices | Desktop |
Noise level | 19.3 dB |
Material | Fibre-glass reinforced PBT |
Maximum rotational speed | 3E+3 RPM |
UPC | 841501110030 |
About this item
- Premium quiet fan, 60x60x25 mm, 5V, 3-pin Molex, 3000 RPM, 19.3 dB(A), >150,000 h MTTF
- Award-winning 60x25mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
- 3-Pin 5V version (3000 RPM) with polarity protection for 5V industrial applications.
- Ideal replacement for noisy or broken 5V 6cm fans in DVRs, NAS, network and storage devices, 3D printers, etc.
- Includes anti-vibration mounts, fan screws, extension cable and OmniJoin adaptor set for connection to proprietary fan headers
Product details
- Is discontinued by manufacturer : No
- Product Dimensions : 6 x 6 x 2.5 cm; 58.97 g
- Date First Available : May 23 2018
- Manufacturer : Noctua
- Place of Business : Clarksville, Tennessee 37043,US
- ASIN : B01K4HRLRI
- Item model number : Noctua NF-A6x25 5V
- Country of origin : China
- 鶹 Rank: #59,836 in Electronics (See Top 100 in Electronics)
- #946 in Computer Cooling Fans
- Customer Reviews:
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Top Brand: Noctua
From the brand

Noctua Cooling Solutions
Noctua's premium cooling components are internationally renowned for their superb quietness, exceptional performance and quality.
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Product Description


Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and Noctua’s AAO frame, the NF-A6x25 5V is a dedicated 5V version of Noctua’s highly optimised, premium-quality quiet 60x25mm fan. Smooth Commutation Drive technology and Noctua’s reference-class SSO2 bearing assures superb running smoothness and excellent long-term stability. Topped off with modular cabling and the OmniJoin Adaptor Set, the NF-A6x25 5V is a premium choice for demanding 5V applications.

5V version
Many devices, such as network or storage solutions, use 5 volt 60mm fans. With the same operating voltage and the included OmniJoin adaptor set that makes it compatible with proprietary fan headers, the NF-A6x25 5V is ideal for replacing noisy or broken 5V 60mm fans.
Please Note: Being a 5V fan, the NF-A6x25 5V cannot be run at 12V and will be damaged when used with typical 12V power sources such as PC motherboard fan headers.
Reduced motor hub sizes
Thanks to its streamlined, compact motor design, the NF-A6x25's motor hub is smaller than with conventional 6cm fans. This allows for more blade surface area and thus contributes to the NF-A6x25's superior airflow and pressure performance.
SSO2 Bearing
The NF-A6x25 features the further optimised second generation of Noctua's renowned, time-tested SSO bearing. With SSO2, the rear magnet is placed closer to the axis to provide even better stabilisation, precision and durability.
Flow Acceleration Channels
The NF-A6x25 impeller features suction side Flow Acceleration Channels. By speeding up the airflow at the crucial outer blade regions, this measure reduces suction side flow separation and thus leads to better efficiency and lower vortex noise.
Scope of Delivery
- OmniJoin Adaptor Set
- 30cm extension cable
- 4 anti-vibration mounts
- 4 fan screws

AAO frame
Noctua's AAO (Advanced Acoustic Optimisation) frames feature integrated anti-vibration pads as well as Noctua's proprietary Stepped Inlet Design and Inner Surface Microstructures, both of which further refine the fan's performance/noise efficiency.
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NF-A6x25 PWM
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NF-A6x25 FLX
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NF-A6x25 5V PWM
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NF-A6x25 5V
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Customer Reviews |
4.6 out of 5 stars 2,428
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4.8 out of 5 stars 1,288
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4.7 out of 5 stars 76
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4.8 out of 5 stars 122
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Connector | 4-pin PWM | 3-pin | 4-pin PWM | 3-pin |
Voltage | 12V | 12V | 5V | 5V |
RPM: | Max: 3000 / Min: 550 | 3000 | Max: 3000 / Min: 650 | 3000 |
RPM with L.N.A. | 2300 | 2400 | - no data | - no data |
RPM with U.L.N.A. | - no data | 1600 | - no data | - no data |
Acoustical Noise | 19,3 dB(A) | 19,3 dB(A) | 19,3 dB(A) | 19,3 dB(A) |
Acoustical Noise with L.N.A. | 13,7 dB(A | 14,5 dB(A) | - no data | - no data |
Acoustical Noise with U.L.N.A. | - no data | 8,2 dB(A) | - no data | - no data |
Size | 60x60x25 mm | 60x60x25 mm | 60x60x25 mm | 60x60x25 mm |
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Customer reviews
Reviews with images

For Raspberry Pi 4, the 12v is quieter
Top reviews from Canada
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Reviewed in Canada on April 3, 2022Verified PurchaseC'est correct. Merci.
- Reviewed in Canada on March 19, 2023Verified PurchaseReally quiet, 4 stars because it blows less air than expected, However if it satisfies the cooling requirement as it does in my project of converting a fiber optic X-mas tree from 12volts to almost all 110 volt except for the 5 volt fan it is excellent, packaging is above average and likely contributes to the price. No complaints, 鶹 had it at my door step in 1 day all good. Just to be clear, I actually purchased a fan that ran on 110 volts, after running it for a week, it began to make more noise than it should have and it was not because it was blowing more air, I believe the bearing /s are not lasting as they should. I will be contacting 鶹 to see if it is warranted and returnable.
Herb S
- Reviewed in Canada on December 22, 2020Verified PurchaseThis is my 2nd 60mm Noctua Fan for my Raspberry Pi 4. I got a 12v and now I tried this 5v version.
Using the 12v fan on 5v power is much quieter than using the 5v fan on 5v power. Maybe I’m stating the obvious. I much prefer the 12v fan as it was almost silent.
I removed the 3 wires, rearranged the red and black to suit the Rpi4 and trimmed the two plastic tabs on the molex connector that were bumping into the Rpi 4 GPIO pins. I folded back the yellow wire and taped it to the cable sheath.
4.0 out of 5 starsThis is my 2nd 60mm Noctua Fan for my Raspberry Pi 4. I got a 12v and now I tried this 5v version.For Raspberry Pi 4, the 12v is quieter
Reviewed in Canada on December 22, 2020
Using the 12v fan on 5v power is much quieter than using the 5v fan on 5v power. Maybe I’m stating the obvious. I much prefer the 12v fan as it was almost silent.
I removed the 3 wires, rearranged the red and black to suit the Rpi4 and trimmed the two plastic tabs on the molex connector that were bumping into the Rpi 4 GPIO pins. I folded back the yellow wire and taped it to the cable sheath.
Images in this review
- Reviewed in Canada on October 26, 2021Verified PurchaseNoctua is a high quality fan and worth the extra cost to protect precious components. The best packaging and included accessories of any fan. All materials are top notch and fit and finish is perfect. Fans and well engineered for optimal air flow with minimum noise. Perfect for low noise operations like a desktop computer, home theatre PC or for what i use this for - helmet cooling. i connect this to a 5 volt USB power pack and install this in my helmet. The airflow is good and its nice and quiet so i can hear outside noises. Highly recommended.
Noctua is a high quality fan and worth the extra cost to protect precious components. The best packaging and included accessories of any fan. All materials are top notch and fit and finish is perfect. Fans and well engineered for optimal air flow with minimum noise. Perfect for low noise operations like a desktop computer, home theatre PC or for what i use this for - helmet cooling. i connect this to a 5 volt USB power pack and install this in my helmet. The airflow is good and its nice and quiet so i can hear outside noises. Highly recommended.
Images in this review
Top reviews from other countries
- Bryan TowersReviewed in the United States on November 29, 2024
5.0 out of 5 stars Arrived insanely fast
Verified PurchaseVery good fans, I knew what I was buying. But the delivery was in record time, I ordered it friday night and it arrived sunday (!) night. I wasn't expecting that at all. Five star product and five star delivery.
- Daniel DuranReviewed in the United States on July 7, 2024
5.0 out of 5 stars Works great
Verified PurchaseBought this to replace the fan in my PS2 fat. Which sends 7 volts to the fan when a network adapter and HDD are installed, so I made a voltage divider to bring it down to 5v. Works great and keeps the console cool with almost no noise. Though I don’t mind the color, I only wish it would come in black to match the console, but I guess it doesn’t really matter since it’s in the back and no one will ever see it.
- WandererReviewed in the United States on October 30, 2019
5.0 out of 5 stars Works great on my Valve Index VR headset
Verified PurchaseThis fan works great to add cooling to my Valve Index VR headset. I used the bare wire adapter to add a USB plug to it (even comes with no solder wire clips), 3D printed a bracket and fan guard, and just used the anti vibration attachments to hook it to the bracket.
Make sure you put a fan guard to protect the blades from your battles!
WandererWorks great on my Valve Index VR headset
Reviewed in the United States on October 30, 2019
Make sure you put a fan guard to protect the blades from your battles!
Images in this review