--- product_id: 77270766 title: "NF-A4X10 FLX 40x40x10mm 3-pin 4500 RPM Case Fan/Case Cooler" brand: "noctua" price: "€ 77.59" currency: EUR in_stock: true reviews_count: 10 category: "Noctua" url: https://www.desertcart.hr/products/77270766-nf-a4x10-flx-40x40x10mm-3-pin-4500-rpm-case-fan store_origin: HR region: Croatia --- # 8.2 m³/h airflow 17.9 dB ultra-quiet noise 4500 RPM max speed NF-A4X10 FLX 40x40x10mm 3-pin 4500 RPM Case Fan/Case Cooler **Brand:** noctua **Price:** € 77.59 **Availability:** ✅ In Stock ## Summary > 💨 Small fan, big chill — cool your rig without the noise! ## Quick Answers - **What is this?** NF-A4X10 FLX 40x40x10mm 3-pin 4500 RPM Case Fan/Case Cooler by noctua - **How much does it cost?** € 77.59 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/77270766-nf-a4x10-flx-40x40x10mm-3-pin-4500-rpm-case-fan) ## Best For - noctua enthusiasts ## Why This Product - Trusted noctua brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Powerhouse:** Smaller motor hub means more blade surface area, delivering superior cooling in a sleek 40x40x10mm form factor. - • **Flexible Installation:** Includes Low-Noise Adaptor, 3-to-2 pin adaptor, and modular cabling for seamless integration in any setup. - • **Long-Term Reliability:** SSO2 bearing technology guarantees smooth rotation and durability for years of dependable cooling. - • **Precision Aerodynamics:** Flow Acceleration Channels boost airflow efficiency and reduce noise for a whisper-quiet experience. - • **Vibration-Free Operation:** Integrated anti-vibration pads ensure silent, stable performance without compromising compatibility. ## Overview The Noctua NF-A4X10 FLX is a premium 40x40x10mm case fan engineered for high airflow (8.2 m³/h) at ultra-quiet noise levels (17.9 dB). Featuring advanced Flow Acceleration Channels, a compact motor hub for increased blade area, and SSO2 bearings for long-lasting smoothness, it delivers efficient cooling in tight spaces. Its integrated anti-vibration pads and flexible cabling options make it the go-to choice for professionals seeking silent, reliable performance in compact PC builds. ## Description From the manufacturer Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and Noctua’s AAO frame, the NF-A4x10 FLX is a highly optimised, premium quality quiet fan in 40x10mm size. Smooth Commutation Drivetechnology and Noctua’s reference class SSO2 bearings ensure superb running smoothness and excellent long-term stability. Topped off with modular cabling and a Low-Noise Adaptor and OmniJoin Adaptor Set,, the NF-A4x10 is a premium choice for the highest demands. 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. Integrated Anti-Vibration Pads Integrated Anti-Vibration Pads made from extra-soft silicone minimise the transmission of minute vibrations while maintaining full compatibility with all standard mounting systems and fan clips used on heatsinks. 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. Reduced motor hub size This allows for more blade surface area and thus contributes to the NF-A4x10's superior airflow and pressure performance. Scope of delivery Low-Noise Adaptor (L.N.A.) 3:2 Pin Adaptor OmniJoin Adaptor Set 30cm Extension Cable 4 Vibration-Compensators 4 Fan Screws Review: Works as expected - I have used it for a few years now and it works fine, as expected. I occasionally brush off the dirt. Used it to: - cool the GPU - cool the NVMe drive heatsink Wasn't as good as the 80mm intel fan for the GPU (note that I am comparing 40mm to 80mm), so the performance is nothing exceptional, but it is much quieter for a 400mm fan. Review: Great product - The product is awesome and works very seamlessly. And the cooling effect is great. ## Features - Flow Acceleration Channels; Reduced Motor Hub Size - Integrated Anti-Vibration Pads; Smooth Commutation Drive 2; SSO2 Bearing - Low-Noise Adaptor for full flexibility - 3 to 2-pin Adaptor and Polarity Protection; .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. - Extensive cabling options 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 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B009NQLT0M | | Air Flow Capacity | 8.2 Cubic Meters Per Hour | | Best Sellers Rank | #76,265 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #385 in Case Fans | | Brand | Noctua | | Brand Name | Noctua | | Compatible Devices | Desktop | | Cooling Method | Fan | | Customer Reviews | 4.8 out of 5 stars 11,022 Reviews | | Global Trade Identification Number | 04716123314691, 07123290462549, 07133363436841 | | Importer Contact Information | Acro Engineering Company, Z-41, Sanjay Colony II, Pocket Y, Sanjay Colony, Okhla Phase II, Okhla Industrial Estate, New Delhi, Delhi 110020 | | Included Components | Case Fan | | Item Dimensions L x W x H | 40L x 10W x 40H Millimeters | | Item Type Name | Case Fan | | Item Weight | 50 Grams | | Manufacturer | Noctua, Rascom Computerdistribution Ges.m.b.H. Huttengasse 71-75 A-1160 Wien Austria | | Manufacturer Contact Information | Rascom Computerdistribution Ges.m.b.H. Huttengasse 71-75 A-1160 Wien Austria | | Material Type | Fibre-glass reinforced PBT | | Max Rotational Speed | 4500 RPM | | Model Number | NF-A4x10 | | Noise Level | 17.9 Decibels | | Number of Items | 1 | | Packer Contact Information | Rascom Computerdistribution Ges.m.b.H. Huttengasse 71-75 A-1160 Wien Austria | | Part Number | NF-A4x10 | | Power Connector Type | 3-Pin | | Product Dimensions | 40L x 10W x 40H Millimeters | | UPC | 163121136772 809185325669 806291857176 804066543873 842431014054 102930672934 782386476753 172302657890 132017920719 808111662861 809385174852 168141421648 851905102548 | | Unit Count | 1 Count | | Voltage | 12 Volts | | Warranty Description | 6 year manufacturer | ## Product Details - **Brand:** Noctua - **Cooling Method:** Fan - **Power Connector Type:** 3-Pin - **Product Dimensions:** 40L x 10W x 40H Millimeters - **Voltage:** 12 Volts ## Images ![NF-A4X10 FLX 40x40x10mm 3-pin 4500 RPM Case Fan/Case Cooler - Image 1](https://m.media-amazon.com/images/I/81ud+v9ghlL.jpg) ![NF-A4X10 FLX 40x40x10mm 3-pin 4500 RPM Case Fan/Case Cooler - Image 2](https://m.media-amazon.com/images/I/81pLnZYn2oL.jpg) ![NF-A4X10 FLX 40x40x10mm 3-pin 4500 RPM Case Fan/Case Cooler - Image 3](https://m.media-amazon.com/images/I/91q4VBG-wuL.jpg) ![NF-A4X10 FLX 40x40x10mm 3-pin 4500 RPM Case Fan/Case Cooler - Image 4](https://m.media-amazon.com/images/I/91Q8zLVOqyL.jpg) ![NF-A4X10 FLX 40x40x10mm 3-pin 4500 RPM Case Fan/Case Cooler - Image 5](https://m.media-amazon.com/images/I/71at786W2SL.jpg) ## Questions & Answers **Q: what is the CFM for this fan?** A: 5 **Q: This might be a dumb question, but what is the operating voltage? Don't see a rating anywhere in the description or reviews and hoping it's 12VDC.** A: 12 volts DC. 3 pin connector but comes with a 2 pin adapter and extension cables. **Q: Have anyone used this to replace the 35 mm assist fans on an asus sabertooth z87?** A: I have it in my Asus Sabertooth Z170 S and it fits just fine! (just remove the two Anti-Vibration Pads in contact with the TUF Armor to be able to close the lid). Take into consideration that in my version of the Sabertooth, the assistant fan position is vertical, inside the TUF Thermal Armor, between the IO Shield and the heatsink VRM, and works as an intake fan, to blow fresh air into the motherboard. Every Sabertooth Assistant Fans are designed to work differently. I believe in your motherboard the fan is place horizontally, on Top of the TUF Thermal Armor. Also the fans needed for your Sabertooth Z87 had a mini 3 pin connector, my motherboard use 3 or 4 pin (regular size) connectors. Therefore the original assistant fan of the Sabertooth Z87 cannot be plugged in the Assist Fan 1 connector of my Sabertooth Z170 S. I know this because I was looking for the fans for my motherboard and buy the Z87 version by mistake, couldn't use it, so I buy the 40mm Noctua, and it works great! Really improved the temperature inside my case. Also my motherboard use 40mm fans. I'm not sure of the Z87 assistant fans size, but putting the two of them together, are exactly the same size, only thing adding up to the size variation, are the Noctuas silicone anti vibrations pads, that can be removed. Hope this helps even a little bit. **Q: What is the sound decible rating** A: http://noctua.at/en/products/fan/nf-a4x10-flx/specification 17.9 ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works as expected *by A***A on 17 May 2026* I have used it for a few years now and it works fine, as expected. I occasionally brush off the dirt. Used it to: - cool the GPU - cool the NVMe drive heatsink Wasn't as good as the 80mm intel fan for the GPU (note that I am comparing 40mm to 80mm), so the performance is nothing exceptional, but it is much quieter for a 400mm fan. ### ⭐⭐⭐⭐⭐ Great product *by T***R on 1 April 2025* The product is awesome and works very seamlessly. And the cooling effect is great. ### ⭐⭐⭐⭐⭐ Nice and silent *by P***R on 1 April 2019* Works Great, meets by expectations and I'd recommend this to anyone in need for a quiet and powerful 40mmx10mm Fan. ## Frequently Bought Together - Noctua NF-A4x10 FLX, Premium Quiet Fan, 3-Pin (40x10mm, Brown) - Noctua NF-A6x25 FLX, Premium Quiet Fan, 3-Pin (60mm, Brown) - Noctua NF-A4x20 FLX Computer Case Fan - Cooling Components (Computer Case, Fan, 4 cm, 3700 RPM, 5000 RPM, 4400 RPM) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/77270766-nf-a4x10-flx-40x40x10mm-3-pin-4500-rpm-case-fan](https://www.desertcart.hr/products/77270766-nf-a4x10-flx-40x40x10mm-3-pin-4500-rpm-case-fan) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-26*