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header-product Noctua fan NF-A4X20 5V PWM — 40×20 mm, 5 V, 4-pin PWM, 1100–5000 RPM, 9.4 m³/h
18.99 €

Noctua fan NF-A4X20 5V PWM — 40×20 mm, 5 V, 4-pin PWM, 1100–5000 RPM, 9.4 m³/h

Noctua NF-A4X20 5V PWM fan Photo 1
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Noctua fan NF-A4X20 5V PWM — 40×20 mm, 5 V, 4-pin PWM, 1100–5000 RPM, 9.4 m³/h

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Noctua fan NF-A4X20 5V PWM — 40×20 mm, 5 V, 4-pin PWM, 1100–5000 RPM, 9.4 m³/h

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Short description

Compact Noctua NF-A4X20 5V PWM fan (40×20 mm) with 4‑pin PWM connector for precise speed control. Operates at 5 V with 0.1 A rated current, delivering 9.4 m³/h airflow and 2.26 mmH2O max static pressure. Speed range 1100–5000 RPM, noise up to 14.9 dB, MTBF 150,000 h. Suited for computer case cooling; screws included for 32×32 mm mounting.
Available at price 18.99 €: 14 pcs.
Total available for order: 97 pcs.
Warranty: 2 Years
SKU: 626085
Manufacturer: Noctua
free shipment

Cheapest delivery:

Venipak Pickup LV, Venipak Locker LV

Pick-up points

Venipak Pickup LV

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
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free
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14.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.09 kg)
Parcel couriers
Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
14.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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Payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay
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Product information

Description

The Noctua NF-A4x20 5V PWM is a compact 40x20 mm cooling fan engineered for efficient, quiet operation in space-constrained computer and electronic applications. This 5V PWM variant incorporates advanced aerodynamic features such as Flow Acceleration Channels and an AAO frame to optimise airflow and static pressure while maintaining low noise levels. The fan uses Noctua’s custom NE-FD3 PWM IC with Smooth Commutation Drive and SSO2 bearings to ensure smooth rotation and long-term stability. Modular cabling, the OmniJoin™ Adaptor Set and a 6-year manufacturer’s warranty complete the package for dependable performance.

Advantages

The fan provides a wide rotational speed range (1100–5000 RPM) that enables precise PWM-based control of airflow and acoustics. Its aerodynamic design increases airflow (up to 9.4 m³/h) and static pressure (up to 2.26 mmH2O) for effective cooling in restricted spaces, while the NE-FD3 PWM IC and SSO2 bearings ensure low vibration, smooth running and durable operation. Built-in modular cabling and the OmniJoin™ Adaptor Set allow flexible installation and compatibility with various 5V systems.

Suitable for

  • Small form factor PCs and mini-ITX builds
  • Embedded systems and single-board computers
  • Router, NAS and network equipment cooling
  • Industrial control units and compact electronic enclosures

Key specifications

  • Model: Noctua NF-A4x20 5V PWM (MPN: NF-A4X20 5V PWM)
  • Dimensions: 40 x 20 mm
  • Rated voltage: 5 V
  • Speed range: 1100–5000 RPM (PWM controlled)
  • Airflow: up to 9.4 m³/h
  • Maximum static pressure: up to 2.26 mmH2O
  • Bearing: SSO2
  • Features: Flow Acceleration Channels, AAO frame, NE-FD3 PWM IC, Smooth Commutation Drive, modular cabling, OmniJoin™ Adaptor Set
  • EAN: 9010018100136

How to use

Install the fan in the desired location within the system using appropriate mounting points for a 40x20 mm fan. Connect the PWM cable to a compatible 5V PWM header or controller; the fan will adjust speed according to PWM signal between 1100 and 5000 RPM. Use the supplied modular cables and OmniJoin™ adapters if a different connector type is required. Ensure correct airflow direction and secure cabling to avoid interference with other components.

Usage recommendations

For optimal performance, place the NF-A4x20 5V PWM where it can move air directly through heat-generating components or vent channels. Use PWM control to balance cooling and noise, and follow manufacturer guidelines for mounting and electrical connections. Regularly check for dust buildup in tight enclosures to maintain airflow and prolong bearing life.

Specifications

Type:
Fan
Fan diameter:
40 mm
All features

Performance

Type:
Fan
Fan diameter:
40 mm
Noise level (high speed):
14.9 dB
Rotational speed (min):
1100 RPM
Rotational speed (max):
5000 RPM
Mean time between failures (MTBF):
150000 h
Airflow:
9.4 m³/h
Maximum air pressure:
2.26 mmH2O
Suitable location:
Computer case

Design

Fan connector:
4-pin

Weight & dimensions

Height:
40 mm
Width:
40 mm
Depth:
20 mm

Power

Power consumption (typical): Power consumption in switched-on state expressed in W.
0.5 W
Rated current:
0.1 A
Voltage:
5

Packaging content

Screws included:
Yes

Other features

Mounting hole pattern (W x D):
32 x 32

Logistics data

Harmonized System (HS) code:
84733080

Description

Machine translation. Load original

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Stock data
Warehouse Stock Delivery to the store Store Price
EU2 14 Thursday Best delivery 18.99 € Best price
WH115 2 20.07.2026 19.49 €
EU16 13 20.07.2026 19.99 €
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Available only for legal entities
Warehouse Stock Delivery to the store Store Price
WH109 34 03.08.2026 27.49 €
18.99 €
Stock: 14
Delivery Date: Thursday Best delivery
Warehouse: EU2
19.49 €
Stock: 2
Delivery Date: 20.07.2026
Warehouse: WH115
19.99 €
Stock: 13
Delivery Date: 20.07.2026
Warehouse: EU16
23.49 €
Stock: 34
Delivery Date: 20.07.2026
Warehouse: WH94
Available only for legal entities
27.49 €
Stock: 34
Delivery Date: 03.08.2026
Warehouse: WH109

Customer reviews

Customer questions

FAQ

How much does the Noctua NF-A4X20 5V PWM fan cost, and is it available for purchase?

The price is 18.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 97 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on Thursday at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All Noctua products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Noctua service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: type, fan diameter, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.