SKU: 15446432318

Noctua NF-A4x10-5V Quiet Cooling 40x40x10mm 5V Fan Kit

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Description

Noctua NF-A4x10-5V Quiet Cooling 40x40x10mm 5V Fan KitNoctua NF A4x10 5V 40mm Fan Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and an AAO standard frame, the NF A4x10 5V is a dedicated 5V version of Noctuas highly optimised, premium quality quiet 40x10mm fan. Smooth Commutation Drive technology and Noctuas reference class SSO2 guarantee superb running smoothness and excellent long term stability. Topped off with modular cabling, the OmniJoin Adaptor Set and 6 years

Noctua NF-A4x10 5V 40mm Fan

Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and an AAO standard frame, the NF-A4x10 5V is a dedicated 5V version of Noctua’s highly optimised, premium quality quiet 40x10mm fan. Smooth Commutation Drive technology and Noctua’s reference class SSO2 guarantee superb running smoothness and excellent long-term stability. Topped off with modular cabling, the OmniJoin™ Adaptor Set and 6 years manufacturer’s warranty, the NF-A4x10 5V is a premium choice for demanding 5V applications.

Being a 5V fan, the NF-A4x10 5V be run at 12V and will be damaged when used with typical 12V power sources such as PC mainboard fan headers./em>

 

Noctua NF-A4x10 5V Features

Noctua NF-A4x10 5V
5V version
Many devices such as network or storage solutions use 5 40mm fans. With the same operating voltage and the included OmniJoin™ adaptor set that makes it compatible with proprietary fan headers, the NF-A4x10 5V is ideal for replacing noisy or broken 5V 40mm fans.
Flow Acceleration Channels
The NF-A4x10 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.
Reduced Motor Hub Size
Thanks to its streamlined, compact motor design, the NF-A4x10's motor hub is smaller than with conventional 4cm fans. This allows for more blade surface area and thus contributes to the NF-A4x10's superior airflow and pressure performance.
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.

Stepped Inlet Design
Noctua's Stepped Inlet Design adds turbulence to the influx in order to facilitate the transition from laminar flow to turbulent flow, which reduces tonal intake noise, improves flow attachment and increases suction capacity, especially in space restricted environments.

Inner Surface Microstructures
With the tips of the fan blades ploughing through the boundary layer created by the Inner Surface Microstructures, flow separation from the suction side of the blades is significantly suppressed, which results in reduced blade passing noise and improved airflow and pressure efficiency.

Integrated Anti-Vibration Pads
Integrated Anti-Vibration Pads made from extra-soft silicone minimize the transmission of minute vibrations while maintaining full compatibility with all standard mounting systems and fan clips used on heatsinks.

Smooth Commutation Drive 2
The latest version of Noctua’s advanced Smooth Commutation Drive system ensures superb running smoothness by eliminating torque variations and switching noises. This makes the NF-A4x10 remarkably quiet even at close distance.

SSO2 Bearing
The NF-A4x10 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.
3 to 2-pin Adaptor and Polarity Protection
The NF-A4x10 comes with an adaptor from 3-pin Molex to the 2-pin connectors used on many graphics cards or network and storage devices. An integrated diode provides polarity protection on 2-pin connections.
OmniJoin Adaptor Set
Many devices featuring 40mm fans use proprietary fan headers, so the NF-A4x10 comes with Noctua's OmniJoin Adaptor Set. Just cut the original fan's cable, fix it to the adaptor using the supplied 3M Scotchlok™ connectors and you can plug the NF-A4x10 to proprietary fan headers!

Extensive Cabling Options
The fan's short 20cm primary cable minimises cable clutter in typical applications while the supplied 30cm extension provides extended reach when necessary. Both cables are fully sleeved.

6 Years Manufacturer's Warranty
Noctua fans are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the NF-A4x10 features an MTBF of more than 150.000 hours rating and comes with a full 6 years manufacturer's warranty.

 

Noctua NF-A4x10 5V Specifications

Noctua NF-A4x10 5V
Size 40x40x10 mm
Connector 3-pin
Bearing SSO2
Blade Geometry A-Series with Flow Acceleration Channels
Frame Technology AAO (Advanced Acoustic Optimization)
Rotational Speed (+/- 10%) 4500 RPM
Airflow 8.2 m³/h - 4.83
Acoustical Noise 17.9 dB(A)
Acoustical Noise with L.N.A. 12.9 dB(A)
Static Pressure 1.78 mm H2O
Max. Input Power 0.25 W
Max. Input Current 0.05 A
Voltage 5V
MTBF > 150,000 h
Scope of Delivery
  • 3:2-Pin Adaptor
  • OmniJoin Adapter Set
  • 30cm Extension Cable
  • 4 Vibration-Compensators
  • 4 Fan Screws
Warranty 6 years

Looking for a replacement for your Prusa MK3S?

 

Prusa switches between two different 5v fans on their Prusa MK3S Kits.

Type B Delta Fan
Type A Noctua Fan NF-A4x10-5V
We also sell the Noctua fan in the Noctua NF-A4x10-5V Kit (this listing) direct from Noctua if these are both out of stock however you will need to solder the wires as it does not come with correct length wire/connector.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 15446432318

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TT
Alexandria, US
★★★★★ 5
Amazing Smart Vacuum — Worth Every Penny!
Color: Black, Size: X60 Max Ultra Complete
This robot vacuum has completely changed how we clean our house. The suction power is incredibly strong, and it handles both vacuuming and mopping very well. The obstacle avoidance is impressive — it moves around furniture smoothly without getting stuck. The self-emptying and self-cleaning station saves so much time, and the app is easy to use. It’s also much quieter than expected for such a powerful machine. Floors look spotless every day with almost no effort. Definitely one of the best smart home purchases we’ve made. Highly recommend for busy families and pet owners!
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Reviewed in the United States on May 7, 2026
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Verified Purchase
. TOM .
Louisville, US
★★★★★ 5
The Ultimate hands-free cleaning experience
Color: Black, Size: X60 Max Ultra Complete
This robot vacuum is amazing, the 35,000 Pa suction is incredibly powerful, it cleans my floors perfectly. I love the ultra-thin design because it fits easily under all my furniture The self-cleaning and refilling features save me so much time. It is very smart and avoids obstacles well. Highly recommended
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Reviewed in the United States on May 4, 2026
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Verified Purchase
Vicky Jiang
Birmingham, US
★★★★★ 5
Convenient and save time
Color: Black, Size: X60 Max Ultra Complete
I have it for about a week now and I am really happy with happy with this purchase so far. This robot vacuum/mop works way better than I expected. It has strong suction and picks up dust, dog hair, and little dirt. The mopping feature is great addition, leaves the floor looking clean and fresh. Setup was pretty easy and the app was simple to use. Great sensor quality and very smart! It moves around furniture good and doesn’t bump like my older robot vacuum cleaner. Overall, very worth it for me. It help me saves time and keep the house clean without much effort.
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Reviewed in the United States on April 29, 2026
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Azuma
Phoenix, US
★★★★★ 5
Smart, powerful and worth the price 👍
Color: Black, Size: X60 Max Ultra Complete, Color: Black, Size: X60 Max Ultra Complete
This robot vacuum has exceeded my expectations. One of my favorite features is how thin it is it reaches under furniture that my previous robot could never access. The suction is incredibly powerful and does an excellent job picking up pet hair, dust, and debris from both hard floors and rugs. The mopping function is surprisingly effective, especially with the hot-water cleaning that helps tackle dried-on spots and everyday messes. I’ve also noticed how intelligently it moves around the house, avoiding obstacles without constantly getting stuck. The self-cleaning dock takes care of most of the maintenance, which makes the whole experience much more convenient. Setup was straightforward, and the app gives plenty of customization options. Overall, it’s a reliable, hands-off cleaning solution that keeps my floors looking great with very little effort from me.
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Reviewed in the United States on May 31, 2026
Verified Purchase
10101111
Belleville, US
★★★★★ 1
Don't toss mop pad holders after a pooptastrophie & take a pic or video for proof
Color: White, Size: X60 Max Ultra Complete
I’ve been using the DREAME X60 Max Ultra Complete Robot Vacuum and Mop for a while now, and it genuinely felt like a major upgrade from previous robot cleaners. The first thing that stands out is the 35,000Pa suction power—it handles fine cat and dog hair, even on plush carpets. Compared to other models I've had, the cleaning performance is noticeably stronger and more consistent. The ultra-thin 3.13-inch design is another big win. It reaches under most beds, sofas, and low furniture where dust usually accumulates. It takes some time to program these details into the vacuum. I was very impressed by the fully automated system: • Self-emptying dustbin • Automatic water refilling • Mop self-cleaning This significantly reduces manual maintenance—you can go days (or longer) without needing to intervene. Until one Sunday evening, I decided to run the unit in the bathroom I share with my cats' automatic litter box, sight unseen. My cat pooped on the floor right in front of her litter box. Over the past two months, the unit has been good about avoiding wires, my black UGG slippers (the unit thought was an uncleanable mess), and my animals. As I was preparing dinner, I noticed the unit sounded a bit strange and clicky. Cat poo wafted through the air as I saw the unit flinging feces into the air and across the area in a sand-like spray. I thought the unit sucked up the poo, but it was mostly dispersed throughout the bathroom floor, baseboards, and walls. The poo was partially dry when the machine discovered it. By the time I discovered the machine, the mop pads and wheels were caked. I put on some gloves, pulled the mop pads off, tossed them in the trash, and proceeded to clean the machine carefully and gently for the next two hours. The next day, I called customer service, and when I asked for them to send me replacement mop pad holders, they said don't worry about it, we will send a new unit after you provide the info we request in an email. It wasn't until the next day that I got an email back asking for pictures and video of the pootastrophie. I didn't take a picture or video because I trusted that the machine caught it on video and labeled the poo as large particles or something. The next time I logged in, the history and video of Sunday night's ordeal were erased. I'm not sure if there was an update. I received an email today saying they don't have the mop pad holders; instead, they offered to give me more mop pads and dust bags. I can't use the mop function, which is half of the reason I got the unit. **** Update Friday, May 8, 2026: My claim was escalated after I refused the extra mop pad holders and dustbags nix the mop pad holder. They are following through with replacing the unit and returning the pooptastrophy unit for testing. Will post updates.
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Reviewed in the United States on May 6, 2026

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