Noctua NF-A4x20 5V PWM, Hoogwaardige Stille Ventilator, 4-Pins, 5V-uitvoering (40x20mm, Bruin)

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.

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.

----- Start of Update 12OCT24 -----The Noctua Fan had previously received many high regards, so I decided to run it longer term and compare it with the orginal Caizhu Fan on the Bitaxe 401 Supra.One can fully customize the settings to run at varying input voltages and pair them up with varying frequencies. I just "picked on" one setting and ran the Bitaxe with the original fan (Caizhu), then the Noctua, as follows:ASIC Voltage Requested: 1.166 VASIC Frequency: 475 MhzFan RPM Setting (Manual): 75%Caizhu Fan: 6,896 RPMBitaxe Power: 12.0 WattsASIC Temp: 47°CExpected Gh/s: 606Run Time: 15.043 hoursAverage Shares p/Hour: 378.052 (Total Shares this Session: 5,687)Shares p/Rejected: 145.821Average Rejected p/Hour: 2.593 (Total Rejected this Session: 39)Gh/s Ranges: 473-810Efficiency Ranges: 17-21 J/ThBest Difficulty (this session): 4.6MNoctua Fan: 5,538 RPMBitaxe Power: 11.6 WattsASIC Temp: 46°CExpected Gh/s: 606Run Time: 15.211 hoursAverage Shares p/Hour: 380.436 (Total Shares this Session: 5,787)Shares p/Rejected: 170.206Average Rejected p/Hour: 2.235 (Total Rejected this Session: 34)Gh/s Ranges: 442-802Efficiency Ranges: 17-21 J/ThBest Difficulty (this session): 4.01MNow, other settings can render different results, but I will just say the obvious, the Noctua doesn't need to spin faster to move more air, it's designed that way, it's why it's good (and I was too quick to judge). It allowed the Bitaxe to consume a bit less power, run 1°C cooler and was also a bit more efficient in the long run.After giving it a fair shake over the last week, I prefer the Noctua over the Caizhu and I know someone else in the house that REALLY appreciates how quiet it runs. I would purchase a Noctua fan for any future Bitaxes that I acquire.Rating increased from 4 to 5 Stars.----- End of Update 12OCT24 -----The NF-A4x20 5V PWM came in a fancy package, with wiring adapters and mounting hardware.I just needed the fan.This fan is the fastest of the Noctua fans, rated at 5,000 RPM +/- 10%, which mine ran at just over 5,400 RPM when I installed it on the Bitaxe 401 Supra.I was disappointed to find that at MAX RPM (5,400), it did not move more air than the stock CAIZHU-FAN (I ran it at 6,750 RPM, or 88% fan speed on the Bitaxe).Even at the MAX speed of 5,400 RPM, the Noctua allowed my Bitaxe to run 6°C hotter than with the CAIZHU-FAN at 6,750 RPM (88% of MAX speed).Furthermore, this Noctua fan causes my Bitaxe to consume 16.2 Watts, versus 15.2 Watts with the stock fan. So, in short, it moves less air and consumes more power :^|On the other hand, the Noctua runs extremely quiet, as advertised "14.9 dB(A)", while the CAIZHU-FAN runs a bit noisy, especially when passing 5,000 RPM.It's up to you.Do you want to run your Bitaxe hotter by 6°C and consume an extra Watt of Power, but it's much quieter?Do you want the sound of the fan in the background, evidence of work in progress, but the Bitaxe runs better?If Noctua would make a 40x40x20 5V PWM fan that was rated at 8,000 RPM, I would love to compare that in operation to the stock CAIZHU-FAN on my Bitaxe 401 Supra. If it cools more, I would be a fan of the Noctua (pun exquisitely intended).

Recibí el producto en tiempo, con una gran sorpresa abrí el paquete y quede encantado con la presentación. La compañia Noctua realmente aprecia su producto y quiere demostrar la calidad de su producto desde el empaque. El empaque esta tan bonito que lo voy a conservar. El paquete viene con muy buena información sobre las especificaciones y características del ventilador. Explica su funcionalidad con un increíble detalle técnico. El ventilador viene con diferentes tipos de cable que lo hace muy versátil para instalarse en diferentes equipos. El único detalle que tiene es que los tornillos no son los adecuados. Tuve que buscar tornillos específicos para colocar el ventilador en mi Jetson Nano. Una vez conectado, me sorprendió lo silencioso que es el ventilador, se enciende cuándo es requerido, funciona mejor de lo que esperaba. En resumen, el ventilador es un excelente producto con excelente calidad, realizado por un equipo que estoy seguro esta enfocado en entregar un producto de calidad. Felicitaciones a Noctua desde Ciudad de México.

De lo mejor en este tipo de ventiladores

Used for a BitAxe - much quieter and better at cooling than the fan that came with it.