Noctua NF-A4x20 5V PWM, Premium Quiet Fan, 4-Pin, 5V Version (40x20mm, Brown)

I order two silent fans and replace a very loud original fans for network switch. Amazing performance no sound at all.

This items working perfectly more than original FANs which coming on QNAP 10g managed switch. Very quiet and cooling the switch. Highly Recommended for others

Bought this to replace my noisy 3D printer hotend fan. It is quiet now.

J’ai acheté le pack de 4 Noctua NF-A4x20 PWM pour refroidir les VRM et le chipset de ma carte mère ASUS ROG Crosshair X870E Hero dans un Obsidian 1000D (setup watercooling extrême avec 32 grands ventilos Corsair déjà très silencieux). À 2500 tr/min en mode Extreme (PWM full), ces petits 40 mm sont vraiment inaudibles, même à 20 cm. Le bruit est complètement noyé par l’airflow général du boîtier, et pourtant ils déplacent bien l’air là où c’est nécessaire (zones derrière le tray MB). La qualité Noctua est toujours au rendez-vous : roulements SSO2 impeccables, câble gainé, accessoires complets (rallonges, adaptateurs Low-Noise). Pour un build haut de gamme où chaque détail compte, c’est le choix parfait quand on veut du silence absolu sur les petits formats. Aucun regret, je recommande à 200 % pour les configs extrêmes où l’on veut zéro bruit supplémentaire.

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.

Ever wondered why that fan makes such annoying noise? Well no longer with Noctua. This is one of the quietest fans that I have used to date. Especially those smaller fans make a lot of noise. Besides that this fan has a great ball bearing, it also comes with rubber vibration cancellation connectors. These easy to use rubber connector are easy to place in your case, and even easier to thread through the fan to fasten them in place. Over the years I have replaced a great amount of fans with those from Noctua.

Inanılmaz derecede sessiz. Ses önceliğinizse direkt bunu alın. Fakat soğutma daha önemliyse pek oneremem.

The best fans that you can buy for your application. Very durable and well built The included hardware is top notch and the splitter is such a welcome addition to have. I have three of these all cooling my BitAxe miners and they are very efficient and quiet, even when running at higher rpm's. Expect Noctua fans to last longer than your electronic device. Just clean then every so often of dust that can accumulate on the fans and you can expect them to have a very long lifespan.