Noctua NF-A6x25 FLX, Premium Quiet Fan, 3-Pin (60mm, Brown)
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Isaac chavez
> 3 dayEasy to install first one burnt out they sent a replacement quick
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Carl
> 3 dayI used this to replace a fan in an old DirecTivo unit. The fan failed once before and I replaced with one I found at a local computer supply store. The first replacement (some off brand) was horribly loud and made it sound like a jet waiting to take off especially when its warmer in the house and the Tivo speeds up the fan to increase cooling. After replacing that one with this Noctua fan it is practically a whisper. When the fan isnt at full speed I hear the hard drive hum more than the fan. When the fan is at full speed I can just make out the sound of the fan, although it sounds more like the sound of air moving rather then mechanical fan noise. Theres no high frequency whine or anything of the sort. Not silent, but probably the closest thing to it Ive heard from a fan. Now if they only made something to replace the tower fan my wife loves to run at night which squeaks and whirs away loudly.
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bmmbmm01
> 3 dayFrom packaging to hardware to install. It worth the price.
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Tanuki
> 3 dayI love quality. Ill pay double for quality. That pretty much sums up Noctua: twice the price for triple the quality. Good buy IMO.
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Ford Prefect
> 3 dayInstalled this fan in my ReadyNAS Duo. The fan that came with it was extremely loud and unpleasant to listen to, this fan is as close to silent as I can imagine. Easy install, lots of accessories and little extras. You could do worse than Noctua fans, but Im not sure you can do better.
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Nathan F
> 3 dayEven though these are really expensive and quite ugly, they provide the same amount of airflow as normal 60mm fans without the typical high pitched whine.
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K B
> 3 dayVery high quality. Super quiet. Three speeds available depending on which cord you use. Rubber isolation mounts included.
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Dave
Greater than one weekUsing to replace the very loud fan that came with the forced air adapter purchased for used tesla. Much quieter and still staying cool.
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RafaMac
> 3 dayIs perfect, but no like so much the brown colors, the rest is ok and silent, I recommend, is ok.
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Cody Beltram
> 3 dayHave an Ender 3 Pro and upgraded my PSU fan. Super quite. I replaced all of the fans with Noctua fans.
Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and Noctua’s AAO frame, the NF-A6x25 FLX is a highly optimised, premium quality quiet fan in 60x25mm size. Smooth Commutation Drivetechnology and Noctua’s reference class SSO2 bearings ensure superb running smoothness and excellent long-term stability. Topped off with modular cabling and Low-Noise Adaptors, the NF-A6x25 is a premium 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.
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Reduced motor hub sizeThanks to its streamlined, compact motor design, the NF-A6x25"s motor hub is smaller than with conventional 6cm fans. This allows for more blade surface area and thus contributes to the NF-A6x25"s superior airflow and pressure performance. |
SSO2 bearingThe NF-A6x25 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. |
Flow Acceleration ChannelsThe NF-A6x25 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. |
Scope of Delivery
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Smooth Commutation Drive 2
The latest version of Noctua"s advanced Smooth Commutation Drive system ensures superb running smoothness by eliminating torque variations and switching noises. This makes the NF-A6x25 remarkably quiet even at very close distances.
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| NF-A6x25 PWM | NF-A6x25 FLX | NF-A6x25 5V PWM | NF-A6x25 5V | |
| Connector | 4-pin PWM | 3-pin | 4-pin PWM | 3-pin |
| Voltage | 12V | 12V | 5V | 5V |
| RPM | Max: 3000 / Min: 550 | 3000 | Max: 3000 / Min: 650 | 3000 |
| RPM with L.N.A. | 2300 | 2400 | - | - |
| RPM with U.L.N.A. | - | 1600 | - | - |
| Acoustical Noise | 19,3 dB(A) | 19,3 dB(A) | 19,3 dB(A) | 19,3 dB(A) |
| Acoustical Noise with L.N.A. | 13,7 dB(A | 14,5 dB(A) | - | - |
| Acoustical Noise with U.L.N.A. | - | 8,2 dB(A) | - | - |
| Size | 60x60x25 mm | 60x60x25 mm | 60x60x25 mm | 60x60x25 mm |