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be quiet! Pure Power 12 M 850W 80PLUS Gold

100% modular power supply 850W ATX12V 3.0 / EPS12V - 80PLUS Gold

Last price 149€95
Holy Moly!
Overview

be quiet! Pure Power 12 M: 80+ Gold power supply, 100% modular

The be quiet! Pure Power 12 M is ATX 3. 0 compliant and PCIe 5.0 compatible, offers 80 PLUS Gold certified power efficiency, full modularity and a be quiet! optimised fan for reliable and quiet operation. Whether you want to build a gaming system with next-generation graphics cards, a quiet PC for office applications or a home cinema system, the Pure Power 12 M 850W is the perfect choice: the Pure Power 12 M 850W offers you the best feature set at the most affordable price.

Quality and reliability be quiet!

The Pure Power 12 M offers 850W of continuous power with two independent 12V rails for perfect signal stability and is 80 PLUS Gold certified. It meets all ATX 3.0 specifications and is equipped with an extremely quiet be quiet! fan. Finally, its cables are modular.

  • 80 PLUS Gold certification (up to 93.2%)
  • ATX 3.0 power supply compatible with PCIe 5.0 graphics cards and those with 6+2 pin connectors
  • Capable of handling very high load variations
  • Ultra-quiet 120 mm fan from be quiet!
  • Very good stability and voltage regulation thanks to LLC technology
  • 2 solid 12 V rails
  • Modular cables for maximum flexibility
  • One PCIe 5.0 12VHPWR cable up to 600 W and up to 4 PCIe 6+2 slots for high-end and overclocked cards
  • Full range of security systems
  • Meets the latest standby requirements
Specifications
Select your criteria

General information

Product name

be quiet! Pure Power 12 M 850W 80PLUS Gold

Brand

be quiet!

Model

BN344

Power and Efficiency

Power

850 W

80 PLUS certification

Yes

80 PLUS / Cybenetics certification

80 PLUS Gold

Connectivity

Modular

Yes

Modularity

100% modular

Power connector(s)

1 X +12V (Power supply P8 - 2 x P4)
1 X +12V (Power supply P8)
6 X Serial ATA power supply
1 X ATX 20 + 4 Pin
2 X Molex (4 Pin) Female
4 X PCI Express 6 + 2 Pin
1 X PCI Express 16 Pin (12V-2x6)

Configurator

PSU-CM compatibility

+12V P4
+12V P4 and +12V P4
+12V P8
+12V P8 and +12V P4
+12V P8 and +12V P8

Cooling

Fan size

120mm

Silent

Yes

Power supply type (PC)

Active

Design

Power format

ATX/EPS

Power supply standard

ATX12V
EPS12V

ATX 3.0

Yes

ATX 3.1

Yes

Multi-GPU

None

Typical use

Desktop computer

Physical characteristics

Color

Black

LED RGB

No

Height

86 mm

Width

150 mm

Length

160 mm

Weight

1.85 kg

Warranties

Commercial warranty

Legal warranty

Safety Information

Responsible person

Listan GmbH

Postal address

Wilhelm-Bergner-Str. 11C 21509 Glinde Allemagne

Electronic Address

Product referenced on 25 Jan 2023

Customer reviews
Global rating
10/10
based on 84 reviews Editorial and moderation guide
  • 89%
    75 reviews
  • 7%
    6 reviews
  • 0%
  • 1%
    1 review
  • 2%
    2 reviews
  • by Dunnload
    Posted on 16 Oct 2025
    Bought on 1 Feb 2025 from LDLC
    Number of reviews: 47 Average rating: 9

    Good fan

    Purchased to replace the default pure wing 3 DC. Much quieter (thanks to the pwm) thanks to bios management.

    Model: be quiet! Pure Power 12 M 850W 80PLUS Gold
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  • by Yannick C
    Posted on 14 Oct 2025
    Bought on 14 Sep 2025 from LDLC
    Number of reviews: 8 Average rating: 10

    Perfect

    Bought to install a replacement PC, everything works perfectly without any noise and the equipment heats up very little.
    Perfect

    Model: be quiet! Pure Power 12 M 650W 80PLUS Gold
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  • by CharlyC
    Posted on 23 Sep 2025
    Bought on 10 Feb 2025 from LDLC
    Number of reviews: 2 Average rating: 10

    At the top

    A silent, high-quality power supply. I've had it for almost 1 year and there have been no problems or loss of power to report.

    Model: be quiet! Pure Power 12 M 850W 80PLUS Gold
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  • by Jason
    Posted on 23 Sep 2025
    Bought on 8 Aug 2025 from LDLC
    Number of reviews: 18 Average rating: 8

    Very good food

    I've had this brand in the past, and it's power supplies that generally last more than 10 years. What's more, it's very quiet. Very pleased.

    Model: be quiet! Pure Power 12 M 550W 80PLUS Gold
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  • by XavierS
    Posted on 22 Sep 2025
    Bought on 25 Aug 2025 from LDLC
    Number of reviews: 4 Average rating: 9

    Satisfied

    I was advised on this power supply because I changed my graphics card, I didn't know what to get and value for money, it's perfect, very satisfied with LDLC's advice, you can feel the passion in the sellers and that they know their stuff very well!

    Model: be quiet! Pure Power 12 M 1000W 80PLUS Gold
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  • by Major Jish
    Posted on 1 Sep 2025
    Bought on 28 May 2025 from LDLC
    Number of reviews: 10 Average rating: 9

    At the top

    No operating problems, I've gone wide on the power level, it wasn't me who fitted it so I can't tell you any more.

    Model: be quiet! Pure Power 12 M 1200W 80PLUS Gold
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  • by Berfalmyr
    Posted on 22 Aug 2025
    Bought on 18 Feb 2025 from LDLC
    Number of reviews: 13 Average rating: 9

    Just excellent

    In terms of value for money, I still haven't found anything better than this model in 2025. Up until now I've been a big fan of Corsair power supplies, but I have to admit that BE QUIET may now be the new boss of the game in this respect. It's also a very quiet power supply.

    Model: be quiet! Pure Power 12 M 750W 80PLUS Gold
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  • by MinhN
    Posted on 21 Jul 2025
    Bought on 22 Jun 2025 from LDLC
    Number of reviews: 7 Average rating: 10

    Works well

    Works well. Lots of optional cables supplied. I used the 12V cable from the PSU instead of the one supplied with the GPU and it fits into the GPU very well.

    Model: be quiet! Pure Power 12 M 850W 80PLUS Gold
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  • by PhilKes
    Posted on 11 Jul 2025
    Bought on 12 Jun 2025 from LDLC
    Number of reviews: 6 Average rating: 10

    Quiet and flexible

    Perfect power supply because it's very quiet and the cables supplied allow us to connect only the peripherals on our PC No unnecessary cables in the case
    As usual, very fast delivery by LDLC

    Model: be quiet! Pure Power 12 M 750W 80PLUS Gold
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  • by Yakk
    Posted on 7 Jul 2025
    Bought on 21 Feb 2025 from LDLC
    Number of reviews: 2 Average rating: 10

    happy with new purchase

    I'm happy with this new purchase, even if I had to wait longer than expected, but it was worth it.

    Model: be quiet! Pure Power 12 M 1000W 80PLUS Gold
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