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The NF-A8 is a highly optimised, premium quality quiet 80mm fan. Featuring Noctua’s AAO (Advanced Acoustic Optimisation) frame as well as sophisticated aerodynamic design measures such as Flow Acceleration Channels, the NF-A8 further improves the renowned quiet cooling performance of the award-winning NF-R8. The FLX version provides 2000/1650/1200rpm speed settings via the supplied Low-Noise Adaptors in order to provide full flexibility in fine-tuning the fan for maximum ventilation performance or near-silent operation. Its superb running smoothness, reference-class 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.
Flow Acceleration Channels
The NF-A8 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.
SSO2 bearing
The NF-A8 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.
Integrated anti-vibration pads
Integrated anti-vibration pads made from extra-soft silicone minimise the transmission of minute vibrations while maintaining full compatibility with all standard screws and other mounting systems.
Scope of delivery
- Low-Noise Adaptor (L.N.A)
- Ultra-Low-Noise Adaptor (U.L.N.A.)
- NA-AC1 3:4-pin adaptor cable
- NA-EC2 30cm extension cable
- 4x NA-AV1 anti-vibration mounts
- Fan screws
Inner Surface Microstructures
With the tips of the fan blades ploughing through the boundary layer created by the Inner Surface Microstructures, flow separation from the suction side of the blades is significantly suppressed, which results in reduced blade passing noise and improved airflow and pressure efficiency.
Jonathan VonEngeln
Reviewed in the United States on March 18, 2025
Excellent fans, quiet. Replaced my Behringer NX3000D pro audio amplifier fans and the result was silent operation!
tryn2lrn
Reviewed in the United States on March 13, 2025
More expensive but worth it
Marlowe Krohn
Reviewed in the United States on April 9, 2025
This is the single nicest fan I've ever bought, you can tell where the price tag comes from. It works fine, and is very quiet when running at full speed.I bought this for a 3d printer enclosure filter fan and it works great, you can defiantly feel the airflow inside of the enclosure, and it maintains the same volume and effectiveness over several day long prints, running at 100% for hours uninterrupted.While being expensive, you get exactly what you pay for, and Im considering changing out all my PC fans with Nocturnas, they really live up to the hype for me.
Jeff S.
Reviewed in the United States on August 1, 2024
I bought this fan to keep my wife's computer cool. I bought a month ago and not happy with the noise it made. The fan is soo quiet. I highly recommend it. It's worth the 16 dollars..ill buy one for my new build.
SKTDK
Reviewed in Belgium on July 20, 2024
I used 3 of these in my mini nas with the Jonsbo N3 case. 2 Back exhausts and one front intake. And let me tell you it is perfect.The Noctua proprietary silicone screws are top-notch and allow for special use cases where normal screws aren't convenient/possible. Works well with the 4-pin Molex cable from any ATX/SFX psu.
Z71Silverado53
Reviewed in the United States on December 17, 2024
Works great as a case fan. Even at full speed, it is still very quiet.
~Mike
Reviewed in the United States on October 3, 2024
Easy install and came with extra cable, screws and other necessary items for even the toughest installs and its whisper quiet. Great price and perfect service and delivery from Amazon. Thanks!
Osman Özcivan
Reviewed in Sweden on May 31, 2023
mycket bra fläkt
T. Fisher
Reviewed in the United States on April 12, 2023
I retrofitted the power supply in an old Compaq Deskpro EP with this.I wanted more airflow through the case without a ton of noise. The Nidec fan from 1998 would've been far too loud if I sped it up much.I took apart my power supply and disabled the fan speed control (even old ATX power supplies have fan speed controllers). I did this by only using the positive off the fan header and finding a different ground.The fan runs at full speed and makes a very pleasant low-pitched noise. This keeps the machine much cooler and will prolong the life of this old power supply.Noctua fans are great, I have them in all my computers. They are powerful air movers and even at higher speeds they stay quiet.
Jcm
Reviewed in Spain on December 10, 2020
La puntuación es la que es, marca de calidad a precio elevado, la presentación del embalaje ya es toda una declaración de intenciones, accesorios y reductores, rotan sin apenas rozamiento, nada de ruido mecánico, y una vez alimentado la diferencia es apreciable con unos estándares.Porque no me termina de convencer, que no el producto sino el sistema, al poner el reductor para menor ruido no deja de ser un cable con una resistencia que deduce la revoluciones y por tanto el ruido, tal como indica el fabricante, pero claro por ello también se reduce el flujo, si haces el mismo ejercicio con otros ventiladores de calidad media, y reduces el número de revoluciones también hay un cambio muy significativo en cuanto al ruido, por ello tras comprar bastantes unidades de diferentes tamaños para cambiar los de dos equipos, cambié los ventiladores de un equipo, y el resto los tengo guardados sin llegar a actualizar un segundo, puse unos potenciómetros en serie con los ya instalados en el segundo equipo, reduciendo la velocidad buscando un compromiso entre ruido y disipación y el resultado es muy similar, si bien es cierto, que la calidad de los ventiladores no es la misma en los "malos" se aprecia holgura y algún ruidito "mecánico" que en los Noctua no, pero no sé si la diferencia económica A MI me llega a compensar.
Martin
Reviewed in Australia on July 30, 2019
Noctua always produce top quality products - this is no exception. Note, this is the DC version - if you're fitting in a PC case pay the extra for the PWM version.
Michael Buck
Reviewed in the United States on May 4, 2017
I bought 2 of these fans to upgrade the stock fan in 2 Kenwood TS-2000 ham radios. It is thicker than the stock fan but there is plenty of clearance. The stock screws can be used in the rear of the mounting holes as they are not long enough to go through the whole fan. I may hunt down some long 2 mm screws someday to complete the installation but it works great as it is. The fan is much quieter than the stock fan and moves a lot more air - a lot more. You have to put your ear right up to the radio to hear the fan. This is great for cross band repeating, Kenwood Sky Command, or digital modes like PSK31 or JT65 that create a lot of heat. If you like it quiet you can even do this if you aren't running any of these modes. Keeping the heat down keeps the finals alive! . This is a high quality fan and it comes with lots of adapters if you are going to use it in a PC. The fan in the TS-2000 is ground switched so if you put a 1 watt, 100 ohm resistor between the fan ground and chassis ground the fan will run at low speed all the time and switch to high speed when the relay closes. It is an ideal fix.
maximus
Reviewed in France on October 4, 2015
Les Noctua sont LA référence avec les Be Quiet et les NoiseBlocker.Leur rapport efficacité/bruit/conso électrique est au top, avec une qualité de fabrication exemplaire.Ces A8-FLX sont des 3 broches régulés en tension (5v, 7v ou 12v).Ils fournissent 50 M3/h à 2000 tpm pour 16 dB.Ils existent aussi en version A8-ULN et A8-PWM. Bien vérifier la version dont vous avez besoin avant.Pour limiter le bruit, toujours privilégier si possible les ventilos de grand diamètre et épais (pales larges).Les prix pratiqués ici et là étant visiblement plus qu'aléatoires, bien vérifier sur la fiche de données Noctua le prix public conseillé.Pour les A8-FLX, il est de 15.90 € TTC à la date de rédaction de ce post.Contenu complet=====================Packaging impeccable, typé "luxe".Fournis avec 2 régulateurs de tension pour baisser la vitesse de rotation, si besoin, de 2000 tpm à 1650 (12.9 dB) ou 1200 (7.9 dB).4 pseudo-vis en silicone pour remplacer les vis tôle.4 vis tôle (inutiles si vous optez pour les vis silicones)1 adaptateur 4 broches-3 broches.1 rallonge 3 broches.Notice très succinte, type marketing, sans la moindre info...Sur Synology 1515 (avec DSM 5.2)================================Contrairement aux autre NAS de la gamme, le 1515 n'hiberne que les disques et pas le système.Les ventilos tournent donc 24/24h et sont en plus de petit diamètre (80mm).Les ventilos usine sont des Yen Sun FD128020HL de 20mm d'épaisseur (51 M3/h à 2900 tpm) de très mauvaise qualité, bruyants (29 dB) et mal équilibrés (vibrations).Tous les ventilos standard de 80 sont normalement des 25mm d'épaisseur. Ils rentrent sans problème dans ce NAS (commentaire de w1000n confirmé ;-)). Il faut juste enlever un attache-cable inutile, à l'intérieur du NAS coté droit (vue arrière).Petit Conseil de montage:Après avoir placé les Noctua dans les cadres de montage du Synology,Les vis en silicone sont vraiment difficile à enfiler.Il faut les graisser légèrement, tirer fermement l'extrémité tout en poussant de l'autre coté pour arriver à les clipser complètement dans les Noctua.Montés sans les réducteurs de tension, ils sont déjà super silencieux.Aucun fichier système à modifier. Sur le 1515+, ces Ventilos sont acceptés tel quel par le NAS et ne bippent pas en erreur.En tournant pourtant à 900 tours minute de moins, ils offrent le même cubage/heure avec un bruit divisé par 3 :-)La température des 5 disques (WD RED for NAS) ne dépasse jamais les 29 degrés.Cool !
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