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CoolPC, Inc DBA Coolerguys.com
11630 Slater Ave NE
Kirkland, WA 98034
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Noctua - NF-A9 PWM Fan 90x25mm 12V, 4 Pin.
Also available in FLX version.
The NF-A9 is a highly optimised, premium quality quiet 92mm fan. Featuring Noctuas AAO (Advanced Acoustic Optimisation) frame as well as sophisticated aerodynamic design measures such as Flow Acceleration Channels, the NF-A9 further improves the renowned quiet cooling performance of the award-winning NF-B9. The PWM version sports Noctuas custom designed NE-FD1 IC for fully automatic speed control via 4-pin fan headers and comes with a Low-Noise-Adaptor to reduce the maximum speed during PWM control from 2000 to 1550rpm. Its superb running smoothness, reference-class SSO2 bearing and Noctuas trusted premium quality make it an elite choice for the highest demands.
Succeeding the award-winning NF-B9 Noctuas NF-B9 fan has become a default-choice among PC enthusiasts looking for a premium quality quiet 92mm fan. Thanks to its thoroughgoing aerodynamic optimisations, the NF-A9 provides higher static pressure and an even better airflow/noise ratio than its much acclaimed predecessor.
NF-A9 Flow Acceleration Channels The NF-A9 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. button
NF-A9 AAO Frame Noctuas AAO (Advanced Acoustic Optimisation) frames feature integrated anti-vibration pads as well as Noctuas proprietary Stepped Inlet Design and Inner Surface Microstructures, both of which further refine the fans performance/noise efficiency. button
Stepped Inlet Design Stepped Inlet Design Noctuas Stepped Inlet Design adds turbulence to the influx in order to facilitate the transition from laminar flow to turbulent flow, which reduces tonal intake noise, improves flow attachment and increases suction capacity, especially in space restricted environments. button
Inner Surface Microstructures 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. button
Integrated Anti-Vibration 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.
SSO2 SSO2 Bearing The NF-A9 features the further optimised second generation of Noctuas renowned, time-tested SSO bearing. With SSO2, the rear magnet is placed closer to the axis to provide even better stabilisation, precision and durability. button
PWM Custom designed PWM IC with SCD Supporting fully automatic PWM speed control, the NF-A9 PWM uses Noctuas novel, custom designed NE-FD1 PWM IC that integrates Smooth Commutation Drive (SCD) technology. By providing smoother torque impulses, SCD suppresses PWM switching noises and thus makes the fan quieter at low speeds. button
LNA Low-Noise Adaptor The NF-A9 PWM is supplied with a Low-Noise Adaptor (L.N.A.) that reduces the maximum fan speed from 2000 to 1550rpm. The L.N.A can be used either to run the fan at a fixed speed of 1550rpm or to cap the maximum speed when using automatic PWM control.
Cabling Options Extensive cabling options The fans short 20cm primary cable minimises cable clutter in typical applications while the supplied 30cm extension provides extended reach when necessary. Both cables are fully sleeved and a 4-pin y-cable allows to connect a second NF-A9 PWM fan to the same PWM fan header for automatic control.
Warranty 6 years manufacturers warranty Noctua fans are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the NF-A9 features an MTBF of more than 150.000 hours rating and comes with a full 6 years manufacturers warranty.
Size 92x92x25 mm Connector 4-pin PWM Bearing SSO2 Blade Geometry A-Series with Flow Acceleration Channels Frame Technology AAO (Advanced Acoustic Optimisation) Rotational Speed (+/- 10%) 2000 RPM Rotational Speed with L.N.A. (+/- 10%) 1550 RPM Min. Rotational Speed (PWM, +/-20%) 400 RPM Airflow 78,9 m³/h or 46.42 CFM Airflow with L.N.A. 62,6 m³/h or 36.84 Acoustical Noise 22,8 dB(A) Acoustical Noise with L.N.A. 16,3 dB(A) Static Pressure 2,28 mm H2O Static Pressure with L.N.A. 1,53 mm H2O Max. Input Power 1,2 W Max. Input Current 0,1 A Voltage 12 V MTBF > 150.000 h
Included in Box Low-Noise Adaptor (L.N.A.) 4-Pin Y-Cable 30cm Extension Cable 4 Vibration-Compensators 4 Fan Screws
Warranty 6 years
Note: PWM Fans are not variable speed control fans on their own. An integrated circuit varies the speed and airflow of a fan using a pulse-width-modulated (PWM) voltage in response to temperature or system commands send typically by a computer motherboard. You can use them to run at full speed from an external supply if you adapt the plug. (PWM Adapter Cables)
*Most orders are processed within 24 hours and are checked frequently Monday - Friday. Orders that placed by 2:00PM PST are usually filled the same day. Some items may contain language with additional processing times. You will be contacted if any items you ordered are no longer in stock.Shipping Times: UPS Map of Times in Transit Click here First-Class mail can take 2-7 business days and Priority Mail usually takes 1-4 business days.95%+ of our items ship out of our local warehouse near Seattle, occasionally we'll have to ship from Oregon, California or New Jersey.Canadian Customers: There are two ways of shipping to Canada through our website.First Class Package International & Priority Mail International.Delivery times for Canadian orders can vary due to International restrictions and customs regulations. Most orders are delivered in 5-14 business days but can take longer (21-45 days) during heavy shipping seasons or in the event of a customs hold which is rareMilitary: As a courtesy to our Military personal we will ship by US postal service to an APO, DPO or FPO address. Be advised that US Postal Costs on large orders can be more expensive then comparable UPS shipping. Will Call pickup: Purchase on line and select "Will Call" as the shipping method and we'll email you when it is ready for pickup (usually next day). Note: Not all our items are warehoused locally and available for Will Call, if there any items on your order not available we will contact you asapMap to our locationSpecial Delivery Instructions: We cannot give any carrier specific information on where to put your packages or whether to hold/require or not require a signature, you must contact the carrier directly after you receive a tracking or confirmation number.Tracking: Tracking information will be sent to you as soon as it is available, occasionally there is a 24-72 hour delay in sending tracking if any item(s) had to be shipped from an alternate location.Note: Tracking numbers will be sent you through an automated e-mail system, the email you submit on your order is the email address you will receive your tracking number .
We offer shipping to a select number of International Countries using UPS and USPS, if you do not see your country listed in the shipping dropdown feel free to contact us.
Whether for refund or replacement please use the RMA form at the bottom of this page for all, if you cannot find your order number or have questions send us a message or give us a call through our contact form
For RefundOur return period for a refund is 30 days from the date of delivery. To be eligible for a refund, your item must be in new sellable condition and with any original packaging.
For ReplacementAll Coolerguy(s), CG and Cabcool branded items come with a 3 year replacement warranty, all other brands we will replace within 30 days after which you must contact the manufacturer.
Several types of goods are exempt from being returnedLiquid / Water Cooling systems and related items are subject to the terms and conditions of the manufacturer. Their returns handled direct, if you need additional information on the warranty or help in contacting them let us know. Additional non-returnable items:Gift cards