Noctua NF-A4x20 FLX 5000RPM Fan - 40mm
Noctua NF-A4x20 FLX 5000RPM Fan - 40mm
Overall Rating: 4.7 / 5 (average from multiple review sources, as of 10 Feb 2026)
Based on a total of 27,431 customer reviews from independent review platforms.
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The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
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pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 27,431 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Cheapest Price
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£11.99
Delivery from £3.99
Noctua NF-A4x20 FLX, Premium Quiet Fan, 3-Pin (40x20mm, Brown)
In stock. Express Delivery available with Amazon Prime.
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£12.79
Delivery from £4.49
40mm Noctua NF-A4x20 FLX Fan
Overall Rating: 4.8 / 5 (average from multiple review sources, as of 28 Jan 2026)
Based on a total of 49,211 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 49,211 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
1 day
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£12.98
Delivery from £5.48
Noctua NF-A4x20 FLX 40mm Chipset Fan
Overall Rating: 4.4 / 5 (average from multiple review sources, as of 28 Jan 2026)
Based on a total of 32,568 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 32,568 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
1-3 working days
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£13.99
Delivery from £3.95
Premium Quiet Fan 3-Pin Frame Superior Quiet Cooling Performance 40x20mm Brown
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 7 Feb 2026)
Based on a total of 22,359 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 22,359 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Cheapest Total Price
Will usually delivered within 2 working days of receiving cleared payment.
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£15.23
Free Delivery
Premium Quiet Fan 3-Pin Frame Superior Quiet Cooling Performance 40x20mm Brown
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 7 Feb 2026)
Based on a total of 22,359 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 22,359 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Will usually delivered within 2 - 3 working days of receiving cleared payment.
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£17.43
Free Delivery
Premium Quiet Fan 3-Pin Frame Superior Quiet Cooling Performance 40x20mm Brown
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 7 Feb 2026)
Based on a total of 22,359 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 22,359 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Will usually delivered within 8 - 10 working days of receiving cleared payment.
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£17.46
Free Delivery
Premium Quiet Fan 3-Pin Frame Superior Quiet Cooling Performance 40x20mm Brown
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 7 Feb 2026)
Based on a total of 22,359 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 22,359 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Will usually delivered within 2 - 3 working days of receiving cleared payment.
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£17.56
Free Delivery
Noctua Nf-A4X20 FLX, Premium Quiet Fan, 3-Pin (40X20Mm, Brown)
Overall Rating: 1.2 / 5 (average from multiple review sources, as of 7 Feb 2026)
Based on a total of 22,359 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Based on a total of 22,359 customer reviews from independent review platforms.
Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.
All brand names and logos are the property of their respective owners.
Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Will usually delivered within 2 - 5 working days of receiving cleared payment.
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£18.66
Free Delivery
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Noctua NF-A4x20 FLX 5000RPM Fan - 40mm - Details
▶ Finding you the best price!
We have found 9 prices for Noctua NF-A4x20 FLX 5000RPM Fan - 40mm. Our price list is completely transparent with the cheapest listed first. Additional delivery costs may apply.
Noctua NF-A4x20 FLX 5000RPM Fan - 40mm - Price Information
- Cheapest price: £11.99
- The cheapest price is offered by overclockers.co.uk . You can order the product there.
- The price range for the product Noctua NF-A4x20 FLX 5000RPM Fan - 40mm is €£11.99to €£18.66 with a total of 9 offers.
- Payment methods: The online shop overclockers.co.uk supports: PayPal, Visa, Mastercard, AmazonPay
- Delivery: The shortest delivery time is Unknown working days offered by overclockers.co.uk .
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Noctua NF-A4x20 FLX, Premium Quiet Fan, 3-Pin (40x20mm, Brown) (Pack of 2)
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Noctua NF-A4x20 PWM Ventilateur Silencieux de qualité supérieure 40 mm
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Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and Noctua’s AAO frame, the NF-A4x20 is a highly optimised, premium-quality quiet fan in size 40x20mm. The FLX version provides 5000/4400/3700rpm speed settings via the supplied Low-Noise Adaptors and includes the OmniJoin™ Adaptor Set for easy connection to proprietary fan headers. Its superb running smoothness, reference-class SSO2 bearing and Noctua’s trusted premium quality make it an elite choice for the highest demands.Features:40x20mm sizeCompared to Noctua’s award-winning NF-A4x10, the NF-A4x20 is twice as thick, which allows for increased static pressure performance and makes the NF-A4x20 ideal for demanding applications with high flow resistance.Flow Acceleration ChannelsThe NF-A4x20 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 low
£11.99
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