SKU: 83729890070

Prusa MK3/S Hot End Fan - Type A Noctua NF-A4x10-5V 40x40x10mm 5V Fan

$33.26 $36.95
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Ships within 48 hours · Estimated delivery Aug 3 - Aug 8

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Description

Prusa MK3/S Hot End Fan - Type A Noctua NF-A4x10-5V 40x40x10mm 5V FanPrusa switches between two different 5v fans on their Prusa MK3S Kits. Type B Delta Fan Type A Noctua Fan NF A4x10 5V (This Listing) We also sell the Noctua fan in the Noctua NF A4x10 5V Kit 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. Noctua NF A4x10 5V 40mm Fan Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and an

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

Type B Delta Fan
Type A Noctua Fan NF-A4x10-5V (This Listing)
We also sell the Noctua fan in the Noctua NF-A4x10-5V Kit 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.

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.

This product is the replacement Hotend fan. It is ONLY compatible with the MK3/S/+. The MK2.5/S Rambo requires the v-cable adapter, the fan can NOT be connected to the MK2.5/S Rambo directly.

 

This product is the replacement Hotend fan. It is ONLY compatible with the MK3/S/+. The MK2.5/S Rambo requires the v-cable adapter, the fan can NOT be connected to the MK2.5/S Rambo directly.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 83729890070

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4.1 ★★★★★
Based on 25 reviews
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G
Verified Purchase
Gracie Galvan
Belleville, US
★★★★★ 5
Hydrating and Powerful Barrier Repair Serum!💧
This serum has been life-changing in calming and restoring my skin barrier. It absorbs quickly, feels lightweight, and instantly soothes irritation without feeling greasy. I’ve noticed my skin looks healthier and more balanced after just a few uses. It’s gentle enough for sensitive skin and works especially well when my skin barrier feels compromised. It is also fragrance-free, which I always appreciate! Trust me, it’s well worth the money!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 28, 2025
O
Verified Purchase
Oc
New York, US
★★★★★ 5
Works as created.
Have been using for a few weeks and have noticed 15% improvement in skin and issues. I did notice a difference in the first 24 hours as advertised. It is suggested need a full month I think to see the true results. At 50 I have pre menopausal skin issues- the redness & inflammation, acne, tightness and sensitivity. It is helping in addition to the other Avene skin products that come in the trial box for sensitive or SOS skin box trial size I think ot is called. This has made a difference. It is easy to apply. I use morning and night. It is different from the Cicalfate + Cream. I use that also as needed. I am happy and recommend it. The price is higher than what I spend. But I wanted to try it to see of i need more than just what was in the Avene sensitive skin trial size box they have. My skin is really red and irritated so the $40 for the bottle is was willing to try because it's painful on my face.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
T
Verified Purchase
Taylor Ashley
Dallas, US
★★★★★ 4
Okay serum, not as good as the cream though
I am obsessed with the cream version of this so I thought I’d give this a try. The dropper top allows for easy application. The formula is light and non greasy and absorbs easily. No harsh fragrances. I would use it when I had eczema flares on my face and feel like it didn’t work near as well in helping with skin irritation as the cream does. As of now I don’t use it as part of my regular skin care. Do I think it’s a bad product? No, but it didn’t really work wonders for me. Not sure I would purchase again.
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Reviewed in the United States on May 21, 2026
E
Verified Purchase
Elizabeth from Houston
Los Angeles, US
★★★★★ 5
Helps with redness and softens skin
I have sensitive, mild rosacea skin. Had a facial recently and the aesthetician suggested I get a serum to help with moisturizer as I am almost 40. I’ve tried a lot of serums and either they are sticky and not really hydrating or break my skin out in a rash. This serum is amazing. Helps calm the redness in my cheeks and my skin is moisturized and soft all day. It feels a little sticky at first but it goes away. I apply in this order OSEA sea mineral mist toner to prep the skin, this serum and top off with Chanel La Solution 10 for sensitive skin.
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Reviewed in the United States on December 27, 2025
C
Verified Purchase
carolyn
Massapequa, US
★★★★★ 5
Sensitive skin
Such a good product. I use after micro needling when skin is sensitive. Also a great product to use as a barrier serum when starting tretinoin cream.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026

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