Noctua NF-A4x20 12V Fan, PWM
Highly optimised, quiet 40 x 20 mm premium fan
CHF 18.20
(Price shown includes 8,1% VAT. - Excludes delivery costs)
Features & Advantages
- Ultra-quiet!
- Premium quality
- Excellent long-term stability
Item no.: RC-NF-A4x20-PWM, Content: 1 pc, EAN: 9010018100105
Product information & technical details
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 12V Fan
Customer Reviews
3 English reviews written for Noctua NF-A4x20 12V Fan
9 customer reviews in all languages
| 5 stars | | 19 | (90%) |
|---|---|---|---|
| 4 stars | | 2 | (9%) |
| 3 stars | | 0 | (0%) |
| 2 stars | | 0 | (0%) |
| 1 Stars | | 0 | (0%) |
21 reviews
3 customer reviews in English
9 customer reviews in all languages
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Zac Smith
27 May 2021
"Verified Purchase" indicates that the rating was given by customers who actually bought this product from us. However, anyone who has a customer account with us can give a rating. Very quiet with enough CFM to use with a v6
Rated with 5 out of 5 stars.
this worked great with the v6 in an open-printer, and later with my dragon in an enclosed chamber, works much better than the noctua 40x10 in both cases whilst only being slightly larger
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AJ DK
14 November 2021
"Verified Purchase" indicates that the rating was given by customers who actually bought this product from us. However, anyone who has a customer account with us can give a rating. Noctua NF-A4x20 Fan
Rated with 5 out of 5 stars.
Optilmal for to mute hotend sound on my Ender3D pro / Ender 3V2
Was this rating helpful? (0) (0)
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IJFPV
02 March 2021
"Verified Purchase" indicates that the rating was given by customers who actually bought this product from us. However, anyone who has a customer account with us can give a rating. Noctua NF-A4x20 Fan
Rated with 5 out of 5 stars.
Great quality fan for making the machine quieter and not sacrificing too much air flow
Was this rating helpful? (0) (0)
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Unfortunately, neither will work as the CR-10S Pro V2 is a 24v machine but the fans are 12v.