🌀 Stay cool, stay ahead — silent power in a compact frame.
The Noctua NF-A4x20 5V is a premium 40mm fan designed for ultra-quiet, high-performance cooling in compact industrial and network devices. Operating at 5000 RPM with a noise level of just 14.9 dB(A), it delivers efficient airflow while maintaining whisper-quiet operation. Built with advanced acoustic optimization and durable materials, it boasts an impressive mean time to failure of over 150,000 hours. Its 5V 3-pin Molex compatibility and included installation accessories make it the go-to choice for professionals upgrading or maintaining NAS, DVR, and 1U server equipment.
| Brand | Noctua |
| Manufacturer | Noctua |
| Model | NF-A4x20 5V |
| Model Name | NF-A4X20 5V |
| Model Year | 2017 |
| Product Dimensions | 4 x 2 x 4 cm; 180 g |
| Item model number | NF-A4x20 5V |
| Compatible Devices | 3d printer, NAS, DVR |
| Number of items | 1 |
| Colour Screen | No |
| Noise Level | 14.9 dB |
| Voltage | 5 Volts |
| Batteries Included | No |
| Batteries Required | No |
| Material | Fibre-glass reinforced PBT |
| Has Auto Focus | No |
| Includes Rechargeable Battery | No |
| Supports Bluetooth Technology | No |
| Programmable Buttons | No |
| Manufacturer | Noctua |
| Country of Origin | USA |
| Item Weight | 180 g |
V**E
High airflow, great performance, but little bit noisy.
Overall Great performance.
M**A
Rpm and airflow
Its amazing too loud for pc but recommended coz you can control with graph
S**L
Excellent Quality but, reduction of price needed to buy more.
It's quality is excellent as expected. But, price is high so price reduction is needed. I want to buy 1 more but, it became an out of stock product nearly everywhere. Amazon delivered it nicely but lately. I hope it comes to stock again.
H**R
Not really meant for home PC, but Noctua is Noctua.
Got these fans around 2.5K each from somewhere else, put it on my Lian-Li Lancool III, which has Noctua NH-D15, 7950x3d etc., put these fans as front intake turned on the PC and suddenly I reminded sitting in a Data Center powering on the any blade server (yes like that laud). So, if you really want laud fan and you like the sound of it, go for it. Technically, with Lian Li case fan which runs at 1800rpm max (non-rgb) I was getting my CPU hovering between 70-72 (AIDA64 Stress Test) and after putting these NF-A14 the temp difference was around 2degree max and CPU was on 69-71 degree for the similar test. And all case fan at 100% including Noctua, you can image the sound, not bearable at all, you may like for few seconds but soon after you will start annoying with its very loud sound. Also this Noctua fan is twice the loud in comparison to my Lian Li case fan at the RPM 1000 and above, upto 1000 it would be same but at 1500RPM you will only hear Noctua. Anyone fascinated for these fans like me, you would probably learn something from my expanse as these industrial fan are industrial indeed, very laud, wont make worthy change in you temps.Now if you have very think radiator may be for the custom looped build and bare the sound of it then it would make some sense to go with these fans technically.Hope it will help someone.
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