Noctua NF-A4x10 FLX Fan - 40mm
Noctua NF-A4x10 FLX Fan - 40mm, photo 2
Noctua NF-A4x10 FLX Fan - 40mm, photo 3
Noctua NF-A4x10 FLX Fan - 40mm, photo 4
Noctua NF-A4x10 FLX Fan - 40mm, photo 5
Noctua

Noctua NF-A4x10 FLX Fan - 40mm

SKU HC-642217MPN NF-A4x10 FLX

  • 40 mm
  • 2 Pin

Highlights

  • 40 x 10 mm frame with Flow Acceleration Channels for higher efficiency
  • Speed range 3,700 to 4,500 RPM via included Low-Noise Adapter
  • Airflow up to 8.2 m³/h, static pressure up to 1.78 mmH₂O
  • Noise level 12.9 to 17.9 dB(A) with Smooth Commutation Drive
  • SSO2 bearing rated >150,000 hours MTBF, 6-year warranty
  • OmniJoin adapter set with 3M Scotchlok clips for proprietary connectors

Key specs

Size
40 mm
Fans in pack
1
Connector
2 Pin
Reverse blades
No
RGB lighting
No
Color
Beige
All specifications
$12.99
  • ≈ 0.0001701 BTC
  • ≈ 0.005735 ETH
  • ≈ 13.01 USDT

In stock Ships by Tue, Nov 10 when paid today.

  • Delivery to the United States: $39.90 DHL Express Worldwide · arrives Wed, Nov 11 – Mon, Nov 16 if paid today
  • Rate locked at checkout Up to 60 min to send BTC, 30 min for ETH and USDT
  • New, sealed and genuine Manufacturer warranty: 6 years
  • 30-day returns Unused items in original packaging
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Overview

The NF-A4x10 FLX is a premium 40x10mm fan built for tight spaces needing strong airflow and low noise. It suits small form factor PCs, network gear, and GPU coolers.

Aerodynamic Design

Flow Acceleration Channels on the suction side reduce flow separation and turbulence noise. A compact motor hub allows larger blade surface area for better pressure and airflow. The AAO frame adds integrated vibration dampers, a stepped inlet, and inner surface microstructures to improve efficiency in restricted intakes.

Motor and Bearing

The latest Smooth Commutation Drive eliminates torque variation and switching noise for smooth operation. The second-generation SSO2 bearing moves the rear magnet closer to the axis for improved stabilization, precision, and durability.

Speed Control and Connectivity

The FLX model runs at 4,500 RPM maximum and drops to 3,700 RPM with the Low-Noise Adapter for quieter use. It includes a 3-pin to 2-pin Molex adapter with reverse polarity protection and a 20 cm primary cable plus a 30 cm extension, both fully sleeved.

OmniJoin Adapter Set

For devices with proprietary connectors, the OmniJoin set lets you cut the original fan cable and attach it using the supplied 3M Scotchlok clips. This enables the NF-A4x10 to replace fans in graphics cards, network appliances, and storage enclosures without soldering.

NF-A4x10 FLX Fan - 40mm specifications

General
BrandNoctua
Manufacturer part no.NF-A4x10 FLX
EAN4716123314691
Warranty6 years (manufacturer)
Fan Specifications
Fan Size40 mm
Fan mounting size40 mm
Fan Blade DirectionStandard
Fan BearingSelf-Stabilizing Oil Pressure Bearing
Min. Fan RPM3700 rpm
Max. Fan RPM4500 rpm
Min. Single Fan Airflow6.6 m³/h
Max. Single Fan Airflow8.2 m³/h
Min. Static Pressure1.21 mmH2O
Max. Static Pressure1.78 mmH2O
Power Specifications
Rated voltage12 V
Noise
Min. Single Fan Noise12.9 dB(A)
Max. Single Fan Noise17.9 dB(A)
Internal Ports
Fan connectors2 Pin, 3 Pin
Lighting
Lighting / RGBNo
Color
Primary ColorBeige
Fan Main Color (Frame)Beige
Fan Main Color (Rotor)Brown
Materials
MaterialsPlastic
Dimensions
Length / Depth40 mm
Width40 mm
Fan height10 mm

Specifications come from the manufacturer and can change without notice. Check the box contents and compatibility before ordering; our team answers questions within one business day.

Shipping & returns

Delivery to the United States: $39.90DHL Express Worldwide · arrives Wed, Nov 11 – Mon, Nov 16 if paid today

Ships from our warehouse in Germany: in stock, it leaves within 1–2 business days, tracked to the door.
ToBusiness daysThis item
GermanyDHL Paket1–2$5.90
Other EU countriesDHL Parcel International2–8$11.90–$15.90
UK, Switzerland and NorwayDHL Parcel International3–7$24.90
United States and CanadaDHL Express Worldwide2–5$39.90
Asia and the Middle EastDHL Express Worldwide2–5$49.90
Australia and New ZealandDHL Express Worldwide3–6$59.90
  • Discreet packaging Plain, unbranded box — no crypto or brand references outside
  • Returns 30 days for unused items in original packaging; faulty items are on us
Rates and delivery times by country

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