Akasa 25mm Black Fan | Mini DC Axial Fan | Case Fan | Long Life Bearing | AK-189BK-2B

I've been running one of these for over 18 months to replace the failed controller cooling fan on my 3D printer. Nice and quiet and plenty of air flow. The only slight irritation was having to swap the connector to match up with the header on my controller.

There's a slight 'buzz' that you shouldn't get from a brushless motor, and I can't locate exactly where its coming from. But otherwise it's quiet enough for my small project, and at a good price.Don't be fooled by other manufacturers marketing claims of a "silent motor" because, while all the motors are very quiet, it is the air passing across the fan blades that actually makes most of the noise. And they can't do much about that.If it's to noisy at full speed and you only need to produce a small airflow to keep something cool, try putting a 100 ohm resistor in series with the fan and your 12v supply and this reduces the voltage to around 7v. This is plenty to run the motor at about half speed and is much quieter. (they start working at around 3.5v)

After using the fan for a couple of days in my pc it all of a sudden became very noisy. Returned it and got a better quality fan which cost more nut you get what you pay for. Disappointed with Akasa quality for this fan to be honest.

I got this to replace the one that came fitted to the Celeron CPU built into a little mini-itx board as like another purchaser of that board said that fan was a little noisy but this replacement one wasn't much quieter. This fan doesn't also come with screws which was a little disappointing as being 20mm thick the ones form the existing fan only just about screw into the heat sink that's glued on the CPU so I will need to buy some longer ones maybe?! I might look into getting a replacement case which has a heat sink and heat-pipe that attached to the outer aluminium case to dissipate the heat so no fan needed.

It’s just a basic fan with the exception of having a sensor for RPM in it (which I’m not using so couldn’t comment on), but well enough made that I trust it. Couldn’t have asked for more for the price.

I bought this for the Asus P67 Sabertooth motherboard. This motherboard comes with a thermal case around it, and the purpose of this fan is to blow air over the insides to keep the 'ignored' components cooler.It has worked well and lowered temperature by a decent amount.It's been 2.5 years since I bought it and now the fan makes a bit of a whiny noise when I cold boot the PC. Considering how little this cost, I am satisfied with it.

Bought this for the hotend on my Ender 3pro 3d printer. Used it with a buck convertor and I now have silent fans when it's printing. So far so good.

I need a low speed fan but the nature of smaller fans is that they generally go very quickly and the level of control to this type of fan is very limited. This generated a lot more noise and air flow than I needed.Too much air flow you say!? Yeah, unfortunately the additional air provided no lower onboard temperatures but means I need to clean inside the case more often.That being said it does the job. It works and has no signs of breaking down so that's good.

la profondità è di 2cm contro i tipici 1cm. In questo modo risulta più efficiente e silenzioso, infatti lo trovo ottimo. Lo uso per l'estrusore della mia stampante 3D

Ventola buona e molto silenziosa.Ha già l'attacco per la scheda madre; io la utilizzo per raffreddare il mio acquario con alimentatore esterno e funziona benissimo.

Ventilateur monté sur une carte graphique, convient parfaitement , il est silencieux. il faut juste démonter le connecteur pour le branchement sur la carte mère.

Es lo que se espera. Un ventilador completamente normal y corriente. Al menos viene bien embalado y no tiene defectos de diseño o fabricación.

Très bon petit ventilo qui n'est pas si bruyant. Akasa fait vraiment tu bons matériels. Ventilo + alim sont vraiment top.