--- product_id: 71150027 title: "Noctua NF-A4x10 5V PWM, High-Performance Quiet Fan 40mm" brand: "noctua" price: "€ 40.10" currency: EUR in_stock: true reviews_count: 13 category: "Noctua" url: https://www.desertcart.hr/products/71150027-noctua-nf-a4x10-5v-pwm-high-performance-quiet-fan-40mm store_origin: HR region: Croatia --- # 5000 RPM max speed Ultra-quiet 19.6 dB noise level 5V USB-powered with PWM control Noctua NF-A4x10 5V PWM, High-Performance Quiet Fan 40mm **Brand:** noctua **Price:** € 40.10 **Availability:** ✅ In Stock ## Summary > 🌀 Stay cool, stay silent—because your gear deserves the best. ## Quick Answers - **What is this?** Noctua NF-A4x10 5V PWM, High-Performance Quiet Fan 40mm by noctua - **How much does it cost?** € 40.10 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/71150027-noctua-nf-a4x10-5v-pwm-high-performance-quiet-fan-40mm) ## 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 - • **Smart PWM Control:** 4-pin PWM lets you fine-tune fan speed for optimal cooling and energy efficiency. - • **Compact Yet Mighty:** Slim 40x40x10 mm design fits tight spaces while delivering up to 8.9 m³/h airflow. - • **Vibration-Free Mounting:** Anti-vibration mounts and OmniJoin adaptors ensure silent, secure installation every time. - • **Whisper-Quiet Powerhouse:** Experience premium airflow at a barely-there 19.6 dB—cool your tech without the noise. - • **Plug & Play USB Versatility:** Includes USB-A power adaptor—cool your devices anywhere with any USB power source. ## Overview The Noctua NF-A4x10 5V PWM is a premium 40mm high-performance fan engineered for ultra-quiet cooling. Operating at up to 5000 RPM with advanced acoustic optimization, it delivers efficient airflow (8.9 m³/h) while maintaining a whisper-quiet 19.6 dB noise level. Designed for 5V USB power with PWM speed control, it includes versatile mounting options and a USB-A adaptor for seamless integration with compact electronics and small form-factor devices. Backed by a 6-year warranty, it’s the go-to choice for professionals demanding silent, reliable cooling in tight spaces. ## Description Buy Noctua NF-A4x10 5V PWM, High-Performance Quiet Fan 40mm | High Airflow Low Noise, 5V, 10mm Slim Fan, for Ventilation and Electronics Cooling, USB-A Power Adaptor, 5000rpm 4-Pin PWM: Case Fans - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Noctua makes the BEST fans!! - I've used Noctua fans in several home-build computers. Great quality and whisper quiet. This Noctua NF-A4x10 5V PWM comes with mounting hardware and USB adapter cable. Plug it in to any USB-A power source and it's on. Compact and quiet. Small size does not provide huge airflow. Yet perfect for quietly cooling small electronics. I have it on top of our cable modem which gets very hot without a fan. Review: Well Worth the Money Spent - Noctua NF-A4x10 5v PWM Fan In my opinion, these fans live up to their premium quality advertisement. Build quality is excellent, noise is very minimal, and the 40 millimeter depth allows for extra airflow. You may not enjoy the color but I'm confident you will enjoy the quality and performance. Used to cool to steering wheel pedal sets they perform quite well and are nearly silent. Cooling is very efficient. These can be mounted with screws or with the included rubber grommets. Please bear in mind these are for 5 volt current not 12 volt. They will work with both PWM or direct voltage applications ## Features - Premium quiet fan, 40x40x10 mm, 5V, 4-pin PWM, max. 5000 RPM, max. 19.6 dB(A), >150,000 h MTTF - Award-winning 40x10mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance - 5V 4-pin PWM version (5000rpm maximum speed) with polarity protection for 5V applications with PWM speed control - USB power adaptor cable allows the fan to run on devices with USB host ports, power banks or USB power supplies such as those used by smartphones - Includes anti-vibration mounts, fan screws, extension cable and OmniJoin adaptor set for connecting the fan to proprietary fan headers ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07DXS86G7 | | Air Flow Capacity | 8.9 cubic meter per hour | | Best Sellers Rank | #107 in Computer Case Fans | | Brand | Noctua | | Brand Name | Noctua | | Compatible Devices | Desktop | | Cooling Method | Air | | Customer Reviews | 4.7 out of 5 stars 1,144 Reviews | | Included Components | NF-A4x10 5V PWM | | Item Dimensions L x W x H | 1.57"L x 1.57"W x 0.39"H | | Item Weight | 80 g | | Manufacturer | Noctua | | Material Type | Fibre-glass reinforced PBT | | Maximum Rotational Speed | 5000 rpm | | Model | NF-A4X10 5V PWM | | Noise Level | 19.6 db | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | NF-A4X10 5V PWM | | Power Connector Type | 4-Pin | | Product Dimensions | 1.57"L x 1.57"W x 0.39"H | | UPC | 841501110320 | | Unit Count | 1 Count | | Voltage | 5 volts | | Warranty Description | 6 year manufacturer’s warranty | ## Product Details - **Air Flow Capacity:** 8.9 Cubic Meters Per Hour - **Brand:** Noctua - **Compatible Devices:** Desktop - **Cooling Method:** Air - **Material:** Fibre-glass reinforced PBT - **Maximum Rotational Speed:** 5000 RPM - **Noise Level:** 19.6 Decibels - **Power Connector Type:** 4-Pin - **Product Dimensions:** 1.57"L x 1.57"W x 0.39"H - **Voltage:** 5 Volts ## Images ![Noctua NF-A4x10 5V PWM, High-Performance Quiet Fan 40mm - Image 1](https://m.media-amazon.com/images/I/81ud+v9ghlL.jpg) ![Noctua NF-A4x10 5V PWM, High-Performance Quiet Fan 40mm - Image 2](https://m.media-amazon.com/images/I/81jxOZS8HFL.jpg) ![Noctua NF-A4x10 5V PWM, High-Performance Quiet Fan 40mm - Image 3](https://m.media-amazon.com/images/I/817F+fKcp5L.jpg) ![Noctua NF-A4x10 5V PWM, High-Performance Quiet Fan 40mm - Image 4](https://m.media-amazon.com/images/I/81AWklDfROL.jpg) ![Noctua NF-A4x10 5V PWM, High-Performance Quiet Fan 40mm - Image 5](https://m.media-amazon.com/images/I/91q4VBG-wuL.jpg) ## Questions & Answers **Q: I need to control the speed using arduino (the arduino has a 500 hz pwm frecuency) can this fan handle this frequency for pwm or what it is?** A: You can change the PWM to FAST PWM for these applications on Arduino. Googalize "25k PWM Arduino code". The real issue is trying to find data specs on the PWM IC that Noctua uses. Googalize "Noctua PWM white paper" and you'll get all the info you need on their PWM specs. Target frequency is 25kHz but the acceptable range is 21kHz to 28kHz. GOOD LUCK. **Q: Is there a 5vdc pwm temperature controller for this fan? been searching, but can't find.** A: No its controlled by the motherboard. I threw away the usb adapter cable, If it was used to power the fan, since usb is 5v, I would expect it to run at full speed. I used my fan on an NVIDIA NANO Single board computer **Q: how long is the cable, from the fan all the way to the usb connector? i want to put this in a small area, so looking for one with a very short cable** A: 40cm. **Q: is there a usb version of the noctua 40x20 5v fan** A: No, there is no USB specific version available. But the kit does include a USB Type A to 4-pin female adapter cable. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Noctua makes the BEST fans!! *by B***M on December 28, 2025* I've used Noctua fans in several home-build computers. Great quality and whisper quiet. This Noctua NF-A4x10 5V PWM comes with mounting hardware and USB adapter cable. Plug it in to any USB-A power source and it's on. Compact and quiet. Small size does not provide huge airflow. Yet perfect for quietly cooling small electronics. I have it on top of our cable modem which gets very hot without a fan. ### ⭐⭐⭐⭐⭐ Well Worth the Money Spent *by F***A on November 2, 2025* Noctua NF-A4x10 5v PWM Fan In my opinion, these fans live up to their premium quality advertisement. Build quality is excellent, noise is very minimal, and the 40 millimeter depth allows for extra airflow. You may not enjoy the color but I'm confident you will enjoy the quality and performance. Used to cool to steering wheel pedal sets they perform quite well and are nearly silent. Cooling is very efficient. These can be mounted with screws or with the included rubber grommets. Please bear in mind these are for 5 volt current not 12 volt. They will work with both PWM or direct voltage applications ### ⭐⭐⭐⭐⭐ Great product *by I***N on June 4, 2026* Great product very quiet and does the job Came with several options for connection including USB which I used definitely worth the money ## Frequently Bought Together - Noctua NF-A4x10 5V PWM, Premium Quiet Fan with USB Power Adaptor Cable, 4-Pin, 5V Version (40x10mm, Brown) - Noctua NF-A4x10 FLX, Premium Quiet Fan, 3-Pin (40x10mm, Brown) - Easycargo 4pcs 40mm Black Fan Grill/Guard with Screws + Nuts (4 Pack) --- ## 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/71150027-noctua-nf-a4x10-5v-pwm-high-performance-quiet-fan-40mm](https://www.desertcart.hr/products/71150027-noctua-nf-a4x10-5v-pwm-high-performance-quiet-fan-40mm) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-08-12*