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be quiet! Pure Wings 2 140mm PWM

Case fan 140 mm PWM

Last price 13€94
Holy Moly!
Overview

Rock-solid reliability and quiet cooling

The Pure Wings 2 series is unique in its class in terms of reliability , quiet operation and excellent price/performance ratio. It's impressive how the be quiet! engineers have managed to integrate a whole range of quiet technologies into such affordable fans. From now on, there is nothing to stop you from equipping your PC with a be quiet! fan.

The Pure Wings 2 140mm PWM combines all these features. It offers a powerful airflow and a noise level of less than 19.8dB. Thanks to the increased air pressure, these fans are especially recommended for radiators and watercooling systems.

Very quiet PWM operation

  • 9 optimised blades, designed to reduce turbulence and increase air pressure
  • Noise level below 19.8dB, even at full speed
  • PWM (Pulse Width Modulation) function intelligently adjusts the fan speed via the 4-pin connector and emits as little noise as possible
  • With PWM, your system can be ramped up for intense cooling or run in ultra quiet mode

Designed, engineered and quality controlled in Germany

  • An idealchoice for desktop PCs, gaming and multimedia setups
  • Especially recommended for radiators and watercooling systems
  • High quality rifle bearing mechanism for up to 80,000 hours of operation




Key Features :

  • Rifle Bearing mechanism
  • Fan diameter: 140 mm
  • Fin dimensions (L x W x H) in mm: 140 x 140 x 25
  • Fan speed at 12V: 1000 RPM
  • Airflow at 12V : 61.2 CFM
  • Noise level at 12V : 18.8 dB
Specifications
Select your criteria

General information

Product name

be quiet! Pure Wings 2 140mm PWM

Brand

be quiet!

Model

BL040

Technical specifications

Use

Case

Color

Black

Luminous

No

Connector(s)

4-pin Female

PWM

Yes

Heat Pipe

No

Cooling type

Active (fansink)

Fan diameter

140 mm

Max sound level

18.8 dB

Maximum rotation speed

1000 RPM

Max airflow

61.2 CFM

Material(s)

ABS (Plastic)
Plastic
Rubber

Use

Office
Gamer
Home Cinema
Multimedia
Server

Bundle

No

Warranties

Commercial warranty

Legal warranty

Product referenced on 18 Dec 2015

Customer reviews
Global rating
10/10
based on 41 reviews Editorial and moderation guide
  • 90%
    37 reviews
  • 10%
    4 reviews
  • 0%
  • 0%
  • 0%
  • by Bisounnours
    Posted on 10 Apr 2025
    Bought on 26 Jul 2023 from LDLC
    Number of reviews: 34 Average rating: 9

    BeQuiet

    A fan that ventilates, from the BeQuiet, what more can I say except that even at full bios setting, it makes almost no noise.

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  • by Simon C
    Posted on 17 Jan 2024
    Bought on 19 Dec 2023 from LDLC
    Number of reviews: 2 Average rating: 9

    Nickel

    Good throughput, Good quality for not too much money blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah

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  • by QuentinV
    Posted on 20 Nov 2023
    Bought on 21 Dec 2021 from LDLC
    Number of reviews: 2 Average rating: 9

    Highly efficient, silent fans

    To complete a Base 500 box from BeQuiet, they do a great job and are especially quiet.
    Inaudible at 1 metre, I sometimes even forget that the computer is on.

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  • by Guillaume I
    Posted on 17 Oct 2023
    Bought on 6 Oct 2023 from LDLC
    Number of reviews: 4 Average rating: 9

    Fine

    Bought 2 recently rather quiet and compared to the price of competition the question does not arise ....

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  • by Superman
    Posted on 29 Sep 2023
    Bought on 31 Aug 2023 from LDLC
    Number of reviews: 4 Average rating: 10

    Impeccable

    I received my order quickly and it was exactly as described - pure Be Quiet and perfectly silent!

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  • by Arnaud D
    Posted on 29 Jul 2023
    Bought on 20 Jun 2023 from LDLC
    Number of reviews: 27 Average rating: 8

    The right balance between PRICE and QUIETNESS

    The PURE WINGS 2 offer good value for money for case ventilation compared with the SILENT WINGS 2 and the new SERIE 3.
    I hesitated for a long time to pay more for the silence, but at 2 or 3 times the price (from 12 to 25 to 36€ each), I didn't take the plunge, even if it lasts over time.
    In other cases (for a VENTIRAD replacement or on a WATERCOOLING RADIATOR), I would have spent more for the static pressure/noise ratio, but for the box ventilation.
    I didn't get the RGB models, which aren't very good in terms of effect, so maybe I'd use RGB grilles instead.
    The noise level is almost inaudible, the air volume level is quite low, but if you put several fans in an open case with a standard configuration, it's perfect (the sensor indicates a case temperature of -2 degrees compared with the old fan, which was 120 and noisier).

    Don't forget to buy a Y cable if you are installing a pair of fans on the front (so that the 2 fans have identical PWM control via the CM).

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  • by Franck-G
    Posted on 11 Feb 2023
    Bought on 29 Jan 2023 from LDLC
    Number of reviews: 21 Average rating: 8

    Promises kept, to be seen in the long term...

    1 star less because it is necessary to see in the duration but very pleasant surprises. I had never used this brand before because the photos gave me an impression of light plastic (in this price range) and the first surprise was the weight and the apparent solidity, it is rigid. The cable is long and black and even without being sheathed it is still an aesthetic plus. No rubber shock absorber but you can adjust it yourself, for my part the rubbers are basic on my box, I put one in push and one in pull. The performance and silence is almost beyond what people say, I was expecting inflated opinions due to a kind of fashion effect for this brand but they are really efficient and quiet as everyone says. I've only pushed them to 100% for testing, ideally you should never be 100% of course, but you have to expect that sometimes it happens and nothing to say, they deserve what you say about them.

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  • by PierrehenriA
    Posted on 26 Mar 2022
    Bought on 20 Mar 2022 from LDLC
    Number of reviews: 18 Average rating: 8

    very good

    good fans, doing their job.
    At the moment my case is not the best but these two fans make up for it

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  • by rémy-marie L
    Posted on 22 Jan 2022
    Bought on 11 Jan 2022 from LDLC
    Number of reviews: 53 Average rating: 9

    Good but fragile

    Be Quiet! is one of the 2 most silent brands with Noctua.
    This 14 Cm is therefore very quiet, it is not very expensive either, in fact it is one of the best quality/price/quietness ratio on the market.
    So why not 10/10?
    In fact Be Quiet! is cheaper than Noctua mainly because of the plastic used:
    Either you fix it with anti-noise clamps
    Or with screws, but be careful, in this case, the dismantling to change the PC for example, risks to destroy the screw thread made during the 1st screwing...
    To stay on a positive note: It does its job very well and silently

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  • by Gerard L
    Posted on 4 Jan 2022
    Bought on 26 Nov 2021 from LDLC
    Number of reviews: 6 Average rating: 10

    Muffler

    I ordered this fan to double the existing one on my Silent Base 600 case. I have nothing to say about the operation of this fan which is very quiet. The fan is very quiet and I connected it to the motherboard which will regulate it.
    On the other hand, it is delivered with only 4 fixing screws which do not correspond to my case. So I had to find something to fix it before realizing ... that the case was delivered with the right screws. I'm sure you'll agree ...

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