Noctua NF-A4x20 Fan

Highly optimised, quiet 40 x 20 mm premium fan

12 Customer Ratings

  • Ultra-quiet!
  • Premium quality
  • Excellent long-term stability
  • $21.33

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Delivery on Wednesday, 10 November: Order today until 13:30.

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Item no.: RC-NF-A4x20-FLX, Content: 1 pc

EAN: 9010018100112

  • Ultra-quiet!
  • Premium quality
  • Excellent long-term stability
FLX: $21.33
PWM: $17.74

Product information & technical details

Item no.: RC-NF-A4x20-FLX
Manufacturer No.: NF-A4x20-FLX
Manufacturers: Noctua
Content: 1 pc
Product types: Fans

Description

Noctua NF-A4x20

The NF-A4x20 is a highly optimised, quiet fan in premium quality with a size of 40 x 20 mm and offers advanced aerodynamic construction measures such as flow acceleration channels and the AAO frame from Noctua.

FLX

The FLX version offers speed settings of 5000 / 4400 / 3700 rpm via the included low-noise adapter and includes the OmniJoin adapter set for easy connection to proprietary fan heads. Its smooth-running, the SSO2 bearing of benchmark class and the proven premium quality from Noctua make it a first-class choice for the highest demands.

Specifications:

Format 40 x 40 x 20 mm
Hole spacing 32 x 32 mm
Connection 3-pin
Rotational. (+/- 10%) 5000 RPM
Rotational. with LNA (+/- 10%) 4400 RPM
Rotational. with ULNA (+/- 10%) 3700 RPM
Noise 14.9 dB (A)
Noise development with LNA 12.2 dB (A)
Noise development with ULNA 8.5 dB (A)
Max. Input 0.6 W.
Max current 0.05 A.
Operating voltage 12 V
MTTF > 150,000 h

PWM

The PWM version is equipped with the customer-specific NE-FD1-IC from Noctua for fully automatic speed control via 4-pin fan heads and has a low-noise adapter and an OmniJoin adapter set for easy connection to proprietary fan heads. Its smooth-running, the SSO2 bearing of benchmark class and the proven premium quality from Noctua make it a first-class choice for the highest demands.

Specifications:

Format 40 x 40 x 20 mm
Hole spacing 32 x 32 mm
Connection 4-pin
Rotational. (+/- 10%) 5000 RPM
Rotational. with LNA (+/- 10%) 4400 RPM
Min. Revolution speed (PWM, +/- 20%) 1200 RPM
Noise 14.9 dB (A)
Noise development with LNA 12.2 dB (A)
Max. Input 0.6 W.
Max current 0.05 A.
Operating voltage 12 V
MTTF > 150,000 h

Noctua Guide

Product videos:

  • Noctua A-Series Fans

Questions & Answers about Noctua NF-A4x20 Fan

Pose a question about this product to customers who have already purchased the item. Please forward any other order-related questions to our Customer Service Team.

  • Hi which version would I need for a cr10s pro v2 for inside the case is it the pwr or flw thanks

    1 Answer, last answered on 12 January 2021

Customer Reviews

2 English reviews written for Noctua NF-A4x20 Fan

7 customer reviews in all languages

4,9 out of 5 stars
5 stars
12 (92%)
4 stars
1 (7%)
3 stars
0 (0%)
2 stars
0 (0%)
1 Stars
0 (0%)

13 reviews
2 customer reviews in English
7 customer reviews in all languages

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