Noctua NF-A6x25 FLX, Premium Quiet Fan, 3-Pin (60mm, Brown)

quiet, well built and hideous. What else can you say, its a noctua!

I have an old Thunderbolt SSD enclosure that has a one-speed fan (always on) the noise from which has annoyed me for years. When I heard about this fan, which happened to be exactly the right size, I was excited with the idea that I could lower the noise level.Now that the new fan was installed, the noise level is significantly lower in volume and frequency vs the original fan, which was an old Sunon MagLev model. It's not utterly silent but much less annoying, so I'm happy with the purchase.I agree with other reviewers that the quality of the materials is quite high, especially for the modest price.If you have a PC motherboard then I'm sure the installation is turnkey. However the connector in my enclosures (I checked a second one also) are not the same as the Intel/AMD standard connector so the install required some soldering. Since the fan in my enclosure is always on and one speed, there are only two wires on the fan connector, so some internet research was needed.I removed the existing fan and clipped the wires going its the proprietary connector. Then I soldered the wires from the Noctua cable to those wires, insulated the joints with heat shrink tubing and re-installed the fan. In my case the original wires and the Noctua wires were black and red, so no polarity check was necessary, but YMMV. There are 4 extension/adapter cables that come with the Noctual box, so I didn't actually have to modify the wire/connector permanently wired to the fan. Instead, I just modified the appropriate adapter cable.I wanted to run it in LNA (low noise) mode, using the designated cable in the Noctua box. Online chatter suggested to ignore the third (yellow, tach) wire and just connect up the red and black on the LNA cable, which I did. It works but the reduced airflow method seems to be to turn the fan on and off. This made a slight clicking noise at the beginning and/or end of the on-cycle. That was annoying - in part because no fan is truly silent.So I then clipped the big 4 pin connector (from PCs of old, maybe 3/4" across) off the 3:4 adapter cable - it just has red and black wires - and soldered them on the wires coming off of the proprietary connector from the enclosure. The fan runs at full speed now but the noise is consistent.If you aren't comfortable soldering small wires and insulating the connections - and your application is something other than a PC motherboard - then a replacement fan might not be the best bet for you.

INCREÍBLE. SE COMPRA ESTE FAN PARA REEMPLAZAR EL RIDÍCULO VENTILADORCITO QUE ESTA DE FABRICA EN UNA TARJETA MADRE BIOSTAR AMD MODELO A68N (CPU integrada) ESE VENTILADOR ESCANDALOSO RUGÍA TERRIBLEMENTE. SE QUITA SE COLOCA EL NUEVO Noctua NF-A6x25 FLX, Ventilador AL CONECTARLO FUERA DEL EQUIPO RUN RUN NI MODO SE ESCUCHABA FUERTE DESPUÉS DE COLOCARLO Y CERRAR EL EQUIPO ES TOTALMENTE FANTÁSTICO CERO RUIDO ABRÍ LA TAPA DEL PC Y SI ESTÁ EN FUNCIONAMIENTO CON UNA FUENTE IDEAL SILENCIOSA LA PC NO SE ESCUCHA NADA Y PUEDES TRABAJAR EN LA NOCHE SIN AFECTAR A TERCERAS PERSONAS.EN TARJETAS MADRE DE MAYOR CALIDAD REALIZAMOS CAMBIOS SORPRENDENTES CON ESTE VENTILADOR.EN LAS TARJETAS MADRE CON PROCESADOR INTEGRADO ES UN POCO MÁS COMPLICADO PORQUE DEBES DECIDIR SI DESEAS RUIDO O EFICIENCIA EN TEMPERATURA DEL CORE TEMP CPU. EN AMD ENFRIA POCO SI LO HACES SILENCIOSO ALCANZA 60 GRADOS CENTÍGRADOS FORZANDO A VARIAS APLICACIONES ABIERTAS A LA VEZ..SI SOLO USAS UNA APLICACIÓN LA TEMPERATURA ENTRE LOS 40 A LOS 52 GRADOS CENTÍGRADOS EN VELOCIDAD MÁXIMAEN INTERNET 60 GRADOS CON APLICACIONES BÁSICAS SI BAJA A LOS 40 GRADOS CENTÍGRADOS AMD SE CALIENTA MAS QUE INTEL ES COSA DE COMO USAS LA PC Y AYUDARSE CON UN MEDIDOR DE TEMPERATURA PARA OBSERVAR EL SOBRECALENTAMIENTOUNA NOTA APARTE CON VENTILADOR RUIDOSO SI SE ENFRIA A 30 GRADOS CENTÍGRADOS EL CPU. PARA CORREGIR ESTE DEFECTO SE COMPRAN 2 VENTILADORES NOCTUA PARA ENFRIAR TOTALMENTE LA PC Y EL RESULTADO ES ESTUPENDO SE ESTABILIZA EN 30 A NO MAS DE 50 GRADOS CENTÍGRADOS.ES INCREIBLE EL LOGRO CON NOCTUA YO HABÍA USADO 3 MARCAS TOTALMENTE RECONOCIDAS Y DE PRESTIGIO PERO ESTA MARCA QUEDE ASOMBRADO Y TIENE CONECTORES PARA AYUDARTE A TENER UN EQUIPO EN FUNCIONAMIENTO PERFECTOEXCELENTE PRODUCTO SIN ENGAÑOS EL COLOR NO ES ALGO ESPECTACULAR PERO LA FUNCION DE CASI ELIMINAR EL RUIDO LO CUMPLE SATISFACTORIAMENTE.PERFECTAMENTE FUNCIONA

I used this to replace the well-documented and hideously noisy fan on an Eaton 5SC tower UPS, which was always on at 100%. Whilst being a non-PC application this meant I had to fudge around with the wiring (they used a different type of connector) and the poor access in the chassis, the kit otherwise came with some useful bits that for a PC would have meant fitting in seconds. The rubber mounts are even better to get rid of vibration noise too.

Great product