--- product_id: 71150023 title: "Noctua NF-A4x10 PWM, High-Performance Quiet Fan 40mm" brand: "noctua" price: "R818" currency: ZAR in_stock: true reviews_count: 13 url: https://www.desertcart.co.za/products/71150023-noctua-nf-a4x10-pwm-high-performance-quiet-fan-40mm store_origin: ZA region: South Africa --- # 5000 RPM max speed Ultra-quiet 19.6 dB(A) 4-pin PWM for smart speed control Noctua NF-A4x10 PWM, High-Performance Quiet Fan 40mm **Brand:** noctua **Price:** R818 **Availability:** ✅ In Stock ## Summary > 🌀 Silent cooling that means business — stay cool, stay ahead. ## Quick Answers - **What is this?** Noctua NF-A4x10 PWM, High-Performance Quiet Fan 40mm by noctua - **How much does it cost?** R818 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/71150023-noctua-nf-a4x10-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 - • **Compact Yet Mighty:** Slim 40x40x10mm design fits perfectly in tight spaces like 1U servers, routers, and NAS devices without compromising performance. - • **Precision Speed Control:** 4-pin PWM technology automatically adjusts fan speed from 1000 to 5000 RPM for optimal cooling and energy efficiency. - • **Whisper-Quiet Powerhouse:** Experience premium airflow without the noise—max 19.6 dB(A) keeps your workspace serene. - • **Award-Winning Aerodynamics:** Flow Acceleration Channels and Advanced Acoustic Optimisation frame deliver superior cooling with minimal turbulence. - • **Ready for Seamless Integration:** Includes anti-vibration mounts, Low-Noise Adaptor, extension cable, and OmniJoin adaptor set for hassle-free installation on proprietary headers. ## Overview The Noctua NF-A4x10 PWM is a compact, high-performance 40mm fan engineered for ultra-quiet operation and precise speed control via 4-pin PWM. Featuring advanced aerodynamic design and premium SSO2 bearings, it delivers up to 5000 RPM airflow at just 19.6 dB(A), making it ideal for professional-grade cooling in servers, network equipment, and compact electronics. Complete with a rich accessory kit and backed by a 6-year warranty, it’s the elite choice for demanding environments. ## Description Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and Noctua’s AAO frame, the NF-A4x10 is an award-winning, premium-quality quiet fan in size 40x10mm. The PWM version sports Noctua’s custom-designed NE-FD1 IC for fully automatic speed control via 4-pin fan headers and comes with a Low-Noise Adaptor as well as an OmniJoin Adaptor Set for easy connection to proprietary fan headers. Its superb running smoothness, reference-class SSO2 bearing and Noctua’s trusted premium quality make it an elite choice for the highest demands. ## Features - Premium quiet fan, 40x40x10 mm, 12V, 4-pin PWM, max. 5000 RPM, max. 19.6 dB(A), >150,000 h MTTF - Award-winning A-series design with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance - 40x10mm size ideal for 1U servers or replacing fans in network and storage equipment (routers, switches, NAS etc.) or other devices such as DVRs - 4-pin PWM version for automatic speed control via 4-pin PWM fan headers, broad 1000-5000rpm speed range (3700rpm max. with supplied Low-Noise Adaptor) - Includes anti-vibration mounts, fan screws, Low-Noise Adaptor, extension cable and OmniJoin adaptor set for connecting the fan to proprietary fan headers ## Technical Specifications | Specification | Value | |---------------|-------| | Air Flow Capacity | 8.9 Cubic Metres Per Hour | | Asin | B07DXRNYNX | | Best Sellers Rank | 3,723 in Business, Industry & Science (See Top 100 in Business, Industry & Science) 31 in Thermal Management Products 87 in Fans & Cooling | | Brand | Noctua | | Compatible Devices | Desktop | | Cooling Method | Air | | Country Of Origin | China | | Customer Reviews | 4.8 4.8 out of 5 stars (1,958) 4.8 out of 5 stars | | Global Trade Identification Number | 00841501110443, 09010018100440 | | Included Components | Noctua NF-A4x10 PWM, High End Silent Fan | | Item Dimensions L X W X H | 40L x 40W x 10H millimetres | | Item Highlight | High Airflow Low Noise 10mm Slim Fan, for PC and Electronics Cooling, Rich Accessory Kit, 5000rpm 4-Pin PWM | | Item Type Name | Fan | | Item Weight | 0.17 Kilograms | | Manufacturer | Noctua | | Manufacturer Part Number | NF-A4x10 PWM | | Material | Fibre-glass reinforced PBT | | Max Rotational Speed | 5000 RPM | | Model Number | NF-A4x10 PWM | | Noise Level | 19.6 Decibels | | Number Of Items | 1 | | Number Of Packs | 1 | | Power Connector Type | 4 broches | | Product Warranty | 6 year manufacturer’s warranty | | Unit Count | 1.0 count | | Upc | 841501110443 | | Voltage | 12 Volts | ## Product Details - **Air flow capacity:** 8.9 Cubic Metres 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 broches - **Product dimensions:** 40L x 40W x 10H millimetres - **Voltage:** 12 Volts ## Images ![Noctua NF-A4x10 PWM, High-Performance Quiet Fan 40mm - Image 1](https://m.media-amazon.com/images/I/81ud+v9ghlL.jpg) ## Questions & Answers **Q: is this the 5v or 12v model ?** A: 12v **Q: Can this just connect directly to a 12v DC supply or does it need to be a dedicated fan supply/connector?** A: You can connect the Noctua to a 12v DC supply. You need to identify which leads on the Noctua are 12V and Ground. The colour code is not obvious. The Noctua does come with a short 12v + Ground cable to adapt the pins to whatever plug you are connecting too. It comes with handy Scotchlok connectors to facilitate this. **Q: Which way round to install, blow ambient air onto the hot area or 'suck' air away from the hot area ?** A: Only true answer is try both ways and see what works best for your setup, I have mine blowing on the components but they are right next to an intake fan **Q: Could i rewire this to a gpu ph2.0 mini 4pin? the 40mm fan on my motherboard is dodo, but uses this connection instead of a standard 3/4pin header.** A: As long as you know which wire is which on your motherboard yes absolutely ## Customer Reviews ### ⭐⭐⭐⭐⭐ Amazing tiny little fans! *by on Reviewed in the United Kingdom 29 May 2026* Almost silent all the time; even at max speed they will not be audible at all with headphones on. Great little fans which can be used to replace PSU fans, or as case fans in a tiny ITX build. Installation was super easy and comes with all the required mounting hardware, and also pairs well with a fan splitter. I used these in a 3D printed bracket for a Jonsbo NV10, and they work great! Slightly questionable value for money for such small fans but performance is so good that I cannot really complain! ### ⭐⭐⭐⭐⭐ Great Fans To Help Move Heat From Confined Spaces *by on Reviewed in the United Kingdom 14 July 2025* Noctua are a known and very good brand of fans. I don't use Noctua as my case fans as the aesthetic does not fit my build. However, the back of my PC gets very warm. I am running a 5080 and a 13th Gen Intel along with a 1000W PSU. This generates quite a bit of heat. Whilst the case fans (Lian Li TL LCD and non-LCD) do a great job of getting the heat from the main case, heat accumulates in the back where my cabling is. I have put two of these very small fans in the rear of my case to help exhaust some of the heat and reduce the temperature inside the cabling compartment.They are PWM so I am running these from their own header and set the fan speed to around 80% minimum which is around 5000rpm (in the BIOS with System temp as the monitor). If the system temp gets over 45 deg, the fans will ramp to full speed which is around 5500rpm. These do not move massive amounts of air like case fans do, but they seem enough to deal with light scenarios. They function as they should. Fast and very, very quiet. In fact, so quiet, I cannot hear them at all (but they are in the rear so quite well sound insulated).Pretty good value for money. At £14 per fan, they are not the cheapest, but you are paying for quality (they come with a 6 year warranty which is nice).Plenty of cabling options in the box also. You might need an extension cable if you have a large case and, therefore, quite a long run.Overall, they are small, spin and move air in the direction you want!For reference, mine are in the rear compartment of a Lian Li Evo XL case running 3x140mm Lian Li TL fans, 5x120mm Lian Li TL fans, 3x120mm Lian Li TL LCD with 3x120mm Thermalright fans behind the radiator (as push-pull), MSI Z790 Edge ti max wifi MB, Corsair DDR5 (OC'd), Intel 13700k (Oc'd) on a EK open loop, Gigabyte RTX 5080 Aero (OC'd), Corsair HX1000i PSU - i.e. quite a bit of heat being generated! ### ⭐⭐⭐⭐⭐ The best case fan I've EVER bought! *by on Reviewed in the United Kingdom 8 December 2019* It feels a bit strange writing a review about a small case fan, but I'm so impressed by this one that I had to share my thoughts.I've built plenty of PCs, and used many different kinds of case fans, but this particular build is a fanless PC that I upgraded to use a second SSD hard drive. I noticed that the temperature was increasing a bit to over 50C - still in the SSD safe zone, but higher than I wanted so decided to add a case fan, accepting that it would probably be quite noisy.Not so!This fan comes with all the connectors you could need. I used the Low-Noise Adapter with the extension, and the anti-vibration mounts, and the result is almost silent operation. The fan speed varies properly according to the SYS_FAN output on the motherboard, and the temperature of the SSD drive no longer exceeds 36C.I have to say a word about presentation, as the packaging is incredible (considering it's a case fan)! The box has to be the most luxurious packaging for a case fan that I've ever seen. The box has flaps on the front and back so you can see the fan and the anti-vibration mounts, and with information about the fan. Opening the box reveals well presented accessories and the fan itself. I feel that the effort spent on packaging (while probably reflected in the price of the fan) reflects really well on the manufacturer.Overall, while this is not the cheapest case fan around, for me it represents the best value, and the near silent operation was a real surprise. I highly recommend this fan. ## Frequently Bought Together - Noctua NF-A4x10 PWM, Premium Quiet Fan, 4-Pin (40x10mm, Brown) - Noctua NF-A8 PWM, Premium Quiet Fan, 4-Pin (80mm, Brown) --- ## 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.co.za/products/71150023-noctua-nf-a4x10-pwm-high-performance-quiet-fan-40mm](https://www.desertcart.co.za/products/71150023-noctua-nf-a4x10-pwm-high-performance-quiet-fan-40mm) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-09-17*