--- product_id: 14165352 title: "NF-A6x25 PWM" brand: "noctua" price: "HK$224" currency: HKD in_stock: true reviews_count: 13 category: "Noctua" url: https://www.desertcart.hk/products/14165352-nf-a6x25-pwm store_origin: HK region: Hong Kong --- # 150,000+ hours MTTF 3000 RPM max speed Ultra-quiet 19.3 dB(A) NF-A6x25 PWM **Brand:** noctua **Price:** HK$224 **Availability:** ✅ In Stock ## Summary > 🛠️ Silent cooling mastery for the discerning pro ## Quick Answers - **What is this?** NF-A6x25 PWM by noctua - **How much does it cost?** HK$224 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/14165352-nf-a6x25-pwm) ## 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 - • **Built to Last:** Engineered with premium materials and a 150,000+ hour MTTF, ensuring your system stays cool for years to come. - • **Compact Yet Mighty:** 60x60x25 mm size fits perfectly in tight spaces like NAS, DVRs, and 3D printers without compromising performance. - • **Whisper-Quiet Power:** Experience supreme cooling with barely-there noise at just 19.3 dB(A), perfect for focused work or gaming marathons. - • **Precision PWM Control:** Seamlessly adjust fan speed from 550 to 3000 RPM via 4-pin PWM for optimal airflow and energy efficiency. - • **Complete Installation Kit:** Includes anti-vibration mounts, extension cables, and low-noise adapters—everything you need for a flawless, silent setup. ## Overview The Noctua NF-A6x25 PWM is a premium 60mm 4-pin fan delivering up to 3000 RPM with ultra-low noise levels of 19.3 dB(A). Featuring advanced acoustic optimization and Flow Acceleration Channels, it ensures efficient, whisper-quiet cooling. Designed for longevity with over 150,000 hours MTTF, it comes complete with anti-vibration mounts, extension cables, and low-noise adapters—ideal for professional setups requiring reliable, silent airflow in compact spaces. ## Description Product description Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and Noctua’s AAO frame, the NF-A6x25 is a highly optimised, premium quality quiet fan in 60x25mm size. 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 to reduce the maximum speed during PWM control from 3000 to 2300rpm. Its superb running smoothness, SSO2 bearing and Noctua’s trusted premium quality make it an elite 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. Reduced motor hub size Thanks to its streamlined, compact motor design, the NF-A6x25's motor hub is smaller than many conventional 6cm fans. This allows for more blade surface area and thus contributes to the NF-A6x25's superior airflow and pressure performance. SSO2 bearing The NF-A6x25 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. Flow Acceleration Channels The NF-A6x25 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. Scope of Delivery NA-RC12 Low-Noise Adaptor (L.N.A) NA-YC1 4-pin PWM y-cable NA-EC1 30cm extension cable 4x NA-AV1 anti-vibration mounts Fan screws Custom-designed PWM IC with SCD Supporting fully automatic PWM speed control, the NF-A6x25 PWM uses Noctua's custom-designed NE-FD1 PWM IC that integrates Smooth Commutation Drive (SCD) technology. By providing smoother torque impulses, SCD suppresses PWM switching noises and thus makes the fan quieter at low speeds. Review: Awesome little fans! Quiet 🤫 at 75% barely audible! - I like'em! (see pics) Got two for my pc (HP P7-1010) to get more air moving in there. Also bought one of the 40x40x20 little guys to get some air coming in the side vent on my tower. These things do not move very much air. But that's OK, it's all I could really do for my tower. And who cares about the color? I think they look awesome. If you want more air movement I would get the Bgears fans. Those things are about 50% more powerful than Nactua's. I know these fans are rated at 3000RPM, the Bgears I have are rated at 5000rpm and they destroy Nactua's fans. BUT! they're louder. Not annoyingly loud, but definitely noticeable. But cmon you can't spin at 5000rpm and be silent... If you look at the picture of my side panel you'll see what I did. My pc was bought all in one at Staples back in 2011. I've upgraded everything possible. Best cpu my mobo will take (AMD Phenom II X6 1065T 95watt) (32gb RAM Kingston Hyperx Fury) (2gb EVGA Nvidia GeForce gtx 750 Ti) (two Solid State Drives by Western Digital, a 500gb, and 1TB) (Seven USB 3.0 ports (pcie card)) (an Antec A30 Heatsink fan) This thing is my baby. I know it's not a custom build. But I've had it for almost 10 years and it runs fine still. I can run almost any game as of 2020 without issue. Audio and Video editing (Pro Tools & Sony Vegas Pro HD) run flawlessly. I've turned a manufacturers system into a monster. And I hope to get another 10 years out of it. But I do plan on finally building my first custom build next year. Sorry for the rambling lol I don't know why I do this on reviews lol Nactua is probably the best in quality. I recommend you buy these bad boys. Or whatever size you need. Get'em! Review: Great quiet fans, fit 740xd - Did fan swap on the 740xd and it worked perfectly. They were really quiet and fan speed was great too. Very quiet even at max rpm, temperature was worse for 740xd but very quiet on light loads. ## Features - Premium quiet fan, 60x60x25 mm, 12V, 4-pin PWM, max. 3000 RPM, max. 19.3 dB(A), >150,000 h MTTF - Award-winning 60x25mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance - Ideal replacement for noisy or broken 12V 6cm fans in DVRs, NAS, network and storage devices, 3D printers, etc. - 4-pin PWM version for automatic speed control via 4-pin PWM fan headers, broad 550-3000rpm speed range (2300rpm max. with supplied Low-Noise Adaptor) - Includes anti-vibration mounts, fan screws, Low-Noise Adaptor, extension cable and y-cable for running two PWM fans on the same header ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00VXTANZ4 | | Air Flow Capacity | 29.2 Cubic Meters Per Hour | | Best Sellers Rank | #81 in Computer Case Fans | | Brand | Noctua | | Brand Name | Noctua | | Compatible Devices | Desktop | | Cooling Method | Air | | Customer Reviews | 4.8 out of 5 stars 2,665 Reviews | | Global Trade Identification Number | 00842431012524, 04716123315636 | | Item Dimensions L x W x H | 2.36"L x 2.36"W x 0.98"H | | Item Weight | 41 Grams | | Manufacturer | Noctua | | Material Type | Fibre-glass reinforced PBT | | Maximum Rotational Speed | 3000 RPM | | Model | NF-A6x25 PWM | | Noise Level | 19.3 Decibels | | Number of Items | 1 | | Part Number | NF-A6x25 PWM | | Power Connector Type | 4-Pin | | Product Dimensions | 2.36"L x 2.36"W x 0.98"H | | UPC | 842431012524 | | Unit Count | 1.0 Count | | Voltage | 12 Volts | | Warranty Description | 6 year manufacturer’s warranty | ## Product Details - **Air Flow Capacity:** 29.2 Cubic Meters Per Hour - **Brand:** Noctua - **Compatible Devices:** Desktop - **Cooling Method:** Air - **Material:** Fibre-glass reinforced PBT - **Maximum Rotational Speed:** 3000 RPM - **Noise Level:** 19.3 Decibels - **Power Connector Type:** 4-Pin - **Product Dimensions:** 2.36"L x 2.36"W x 0.98"H - **Voltage:** 12 Volts ## Images ![NF-A6x25 PWM - Image 1](https://m.media-amazon.com/images/I/71x64G4hl0L.jpg) ![NF-A6x25 PWM - Image 2](https://m.media-amazon.com/images/I/71vjt1v1lTL.jpg) ![NF-A6x25 PWM - Image 3](https://m.media-amazon.com/images/I/712hnlgtfQL.jpg) ![NF-A6x25 PWM - Image 4](https://m.media-amazon.com/images/I/7141dm7HKHL.jpg) ![NF-A6x25 PWM - Image 5](https://m.media-amazon.com/images/I/71viYRVNlSL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Can someone explain how this differs from the non-pwm version? Is it just the number of wires? IF so why would one select that over the alternative?** A: PWM or pulse width modulation is one of several methods to control motor and hence in this case fan speed. The correct motherboard connection as noted below permits the fan speed to be modulated to increase cooling when computing loads are high and slowing the fan at other times. The only benefit being less fan noise. **Q: Is this really a 4-pin pwm fan? the noctua site lists it as 3-pin.** A: NF-A6x25 PWM is a 4-pin fan. **Q: Can this be mounted in place of a 50x50mm fan?** A: No, not unless you have room for it and can enlarge the mounting hole pattern and fan hole. **Q: Can you convert this from 4 pin to 2 pin?** A: It comes with PWM to three pin adapters.... You'd have to hack up your own PWM to DC adapter ## Customer Reviews ### ⭐⭐⭐⭐⭐ Awesome little fans! Quiet 🤫 at 75% barely audible! *by C***E on August 11, 2020* I like'em! (see pics) Got two for my pc (HP P7-1010) to get more air moving in there. Also bought one of the 40x40x20 little guys to get some air coming in the side vent on my tower. These things do not move very much air. But that's OK, it's all I could really do for my tower. And who cares about the color? I think they look awesome. If you want more air movement I would get the Bgears fans. Those things are about 50% more powerful than Nactua's. I know these fans are rated at 3000RPM, the Bgears I have are rated at 5000rpm and they destroy Nactua's fans. BUT! they're louder. Not annoyingly loud, but definitely noticeable. But cmon you can't spin at 5000rpm and be silent... If you look at the picture of my side panel you'll see what I did. My pc was bought all in one at Staples back in 2011. I've upgraded everything possible. Best cpu my mobo will take (AMD Phenom II X6 1065T 95watt) (32gb RAM Kingston Hyperx Fury) (2gb EVGA Nvidia GeForce gtx 750 Ti) (two Solid State Drives by Western Digital, a 500gb, and 1TB) (Seven USB 3.0 ports (pcie card)) (an Antec A30 Heatsink fan) This thing is my baby. I know it's not a custom build. But I've had it for almost 10 years and it runs fine still. I can run almost any game as of 2020 without issue. Audio and Video editing (Pro Tools & Sony Vegas Pro HD) run flawlessly. I've turned a manufacturers system into a monster. And I hope to get another 10 years out of it. But I do plan on finally building my first custom build next year. Sorry for the rambling lol I don't know why I do this on reviews lol Nactua is probably the best in quality. I recommend you buy these bad boys. Or whatever size you need. Get'em! ### ⭐⭐⭐⭐⭐ Great quiet fans, fit 740xd *by U***E on April 23, 2026* Did fan swap on the 740xd and it worked perfectly. They were really quiet and fan speed was great too. Very quiet even at max rpm, temperature was worse for 740xd but very quiet on light loads. ### ⭐⭐⭐⭐⭐ Practically noiseless; worth the money in my quest for quiet *by D***T on September 25, 2020* My home build computer has seen three or four case fans over the last ~18 years but the Noctua fans I've installed this year have made it quieter than it's ever been. First installation was replacement of an old, noisy 80mm fan with a new Noctua fan in front to blow into the case. It's practically noiseless but I failed to realize I then had poor air flow through the case. The power supply fan was insufficient to exhaust what the front case fan supplied. My CPU cooler isn't extremely loud but it was still noticeable. I then installed this 60mm fan on the back, using the Y-splitter to coordinate fan speeds. Both were mounted using the Noctua rubber pull-throughs to isolate them from the case. The result has been excellent! The fans run around 20-30% speed and hold the motherboard temp around 95 degrees F where before it was mostly 25-35% and 105 deg F. Better, the AMD Wraith CPU cooler fan runs around 20-30% with the processor temp holding in the mid-90s F (~35 C), occasionally bouncing up around 115 deg F (~45 C) with the fan speeding up for only a second or two to pull it back down in the 90s again. Previously, I never saw CPU temps below ~105 deg F and fan speed under 30% with noticeable noise that's no longer there. All it took was better air flow through the computer with fans that are *_almost dead silent_*. I have a commercial grade UPS under my desk with an internal fan that makes enough noise to now be noticeable. That's next on my "Quest For Quiet." In my opinion, Noctua fans are the best way to go. Why does it matter they're wierd colors? They're worth the money because they do the job! Oh, yeah - did I say they're *_almost dead silent_*? . ## Frequently Bought Together - Noctua NF-A6x25 PWM, Premium Quiet Fan, 4-Pin (60mm, 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.hk/products/14165352-nf-a6x25-pwm](https://www.desertcart.hk/products/14165352-nf-a6x25-pwm) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-05-18*