--- product_id: 146640809 title: "Noctua NF-A4x20 5V PWM Premium-Quality Quiet 40mm Fan" brand: "noctua" price: "2226871₫" currency: VND in_stock: true reviews_count: 6 category: "Noctua" url: https://www.desertcart.vn/products/146640809-noctua-nf-a4x20-5v-pwm-premium-quality-quiet-40mm-fan store_origin: VN region: Vietnam --- # Noctua NF-A4x20 5V PWM Premium-Quality Quiet 40mm Fan **Brand:** noctua **Price:** 2226871₫ **Availability:** ✅ In Stock ## Quick Answers - **What is this?** Noctua NF-A4x20 5V PWM Premium-Quality Quiet 40mm Fan by noctua - **How much does it cost?** 2226871₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/146640809-noctua-nf-a4x20-5v-pwm-premium-quality-quiet-40mm-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 ## Description Review: Do you hear anything? - This is an amazing fan, it has such low noise I can barely hear. It’s speed is as per specification and helps with better heat management. Strongly recommended if you’re looking for a replacement for 5v PWM fan Review: Noctua una garanzia - Fantastica mini ventola dalle performance eccezzionali. Tiene a bada un miner BitAxe spinto alla massima frequenza, temperatura sui 52 gradi. Rumore appena percettibile. Con la ventola di default sembrava di stare vicino a una turbina con temperature oltre i 69 gradi. Super ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B071FNHVXN | | Best Sellers Rank | #103,088 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #509 in Case Fans | | Brand | Noctua | | Brand Name | Noctua | | Compatible Devices | Desktop, Gaming Console, Laptop, Server | | Cooling Method | forced air | | Customer Reviews | 4.8 out of 5 stars 884 Reviews | | Global Trade Identification Number | 09010018100136 | | Item Weight | 84 Grams | | Max Rotational Speed | 2000 RPM | | Model Number | NF-A4x205VPWM | | Noise Level | 14.9 Decibels | | Part Number | NF-A4x20 5V PWM | | Power Connector Type | 4-Pin | | Unit Count | 1.0 Count | | Voltage | 5 Volts | ## Product Details - **Brand:** Noctua - **Compatible Devices:** Desktop, Gaming Console, Laptop, Server - **Cooling Method:** forced air - **Power Connector Type:** 4-Pin - **Voltage:** 5 Volts ## Images ![Noctua NF-A4x20 5V PWM Premium-Quality Quiet 40mm Fan - Image 1](https://m.media-amazon.com/images/I/71lyRpVR4OL.jpg) ![Noctua NF-A4x20 5V PWM Premium-Quality Quiet 40mm Fan - Image 2](https://m.media-amazon.com/images/I/71hrcJhq7BL.jpg) ![Noctua NF-A4x20 5V PWM Premium-Quality Quiet 40mm Fan - Image 3](https://m.media-amazon.com/images/I/81LqMRpLO2L.jpg) ![Noctua NF-A4x20 5V PWM Premium-Quality Quiet 40mm Fan - Image 4](https://m.media-amazon.com/images/I/81abh0+LmWL.jpg) ![Noctua NF-A4x20 5V PWM Premium-Quality Quiet 40mm Fan - Image 5](https://m.media-amazon.com/images/I/71WxE+WP+2L.jpg) ## Questions & Answers **Q: what is the cfm rating?** A: 5.532631039983588 CFM **Q: Can these be wired to a usb connector and run off a usb wall charger?** A: Yes. I run mine off of the gpio pins on a raspberry pi. That's the same concept. **Q: Does this noctua nf-a4x20 5v pwm premium-quality quiet 40mm fan come with the mounting screws?** A: Yes, it comes with screws a couple of different connectors for attaching it to 3 and 4 pin connections also some rubbery plug things to pull through the mount holes. **Q: Can a 3.3v PWM signal be used to control fan speed?** A: Yes, a 3.3V logic (PWM) signal will control this fan. I use an Arduino DUE board to control this fan. The DUE puts out 3.3V logic signals. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Do you hear anything? *by A***K on 1 November 2025* This is an amazing fan, it has such low noise I can barely hear. It’s speed is as per specification and helps with better heat management. Strongly recommended if you’re looking for a replacement for 5v PWM fan ### ⭐⭐⭐⭐⭐ Noctua una garanzia *by F***I on 5 March 2026* Fantastica mini ventola dalle performance eccezzionali. Tiene a bada un miner BitAxe spinto alla massima frequenza, temperatura sui 52 gradi. Rumore appena percettibile. Con la ventola di default sembrava di stare vicino a una turbina con temperature oltre i 69 gradi. Super ### ⭐ Noctua NF-A4x20 5V PWM USB kablosu çıkmadı *by Ö***L on 6 November 2023* Noctua NF-A4x20 5V PWM kutusundan USB kablosu çıkmadı, araştırdığımda zaten buna USB güç kablosu dahil olmadığını farkettim. Ürün açıklaması yanıltıcıydı. Şimdi ürünü iade edip yenisini 15gün beklemek zorundayım. 40x10mm boyutlarındaki ürüne USB kablosu dahil sanırım belki birinin işine yarar bu bilgi. Noctua NF-A4x20 5V PWM ürünğnden USB güç kablosu çıkmadı. ## Frequently Bought Together - Noctua NF-A4x20 5V PWM, Premium Quiet Fan, 4-Pin, 5V Version (40x20mm, Brown) - Bitaxe Gamma - Solo Satoshi | Made in USA | Power Supply & Stand Included. | ~1.2TH/s @ ~18W | Wi-Fi | Plug and Play Bitcoin Miner. - Bitaxe Stand - Case and Stand for Fully Open Source Bitcoin Miner Bitaxe --- ## 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.vn/products/146640809-noctua-nf-a4x20-5v-pwm-premium-quality-quiet-40mm-fan](https://www.desertcart.vn/products/146640809-noctua-nf-a4x20-5v-pwm-premium-quality-quiet-40mm-fan) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-20*