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

100% modular power supply 1000W ATX12V 3.1 / EPS12V - 80PLUS Gold

199€95
Recycling charge of 0€50
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Overview

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

The be quiet! Pure Power 12 M is ATX 3.1 compliant and PCIe 5.1 compatible. It offers 80 PLUS Gold certified electrical efficiency, complete modularity and a be quiet! fan optimised for reliable, quiet operation. If you want to create a gaming configuration with next-generation graphics cards, a silent PC dedicated to office applications or even a home cinema system : the Pure Power 12 M 1000W will offer you the best set of features at the most affordable price.

Quality and reliability be quiet!

The Pure Power 12 M offers 1000W of continuous power with two independent 12V rails for perfect signal stability, and is 80 PLUS Gold certified. It complies with all ATX 3.1 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 3.1 power supply compatible with PCIe 5.1 graphics cards and those with 6+2 pin connectors
  • Capable of handling very high load variations
  • Ultra-quiet 120 mm fan from be quiet!
  • Excellent voltage stability and regulation thanks to LLC technology
  • 2 solid 12 V rails
  • Modular cables for maximum flexibility
  • One PCIe 5.1 12V-2x6 cable up to 600 W and up to 4 PCIe 6+2 connectors for high-end and overclocked cards
  • Full range of security systems
  • Meets the very latest standby requirements
Specifications
Select your criteria

General information

Product name

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

Brand

be quiet!

Model

BN345

Power and Efficiency

Power

1000 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

1.89 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
  • 88%
    75 reviews
  • 8%
    7 reviews
  • 0%
  • 1%
    1 review
  • 2%
    2 reviews
  • by Krill
    Posted on 21 Jan 2026
    Bought on 13 Aug 2024 from LDLC
    Number of reviews: 11 Average rating: 6

    does his job

    It does what it was designed to do. I'm not a big fan of proprietary connections; I prefer standard ones, as they allow me to manage things as I wish if there's a problem or a cable isn't working.

    That's why I gave it 4 stars instead of 5. The whole point of standard modularity is to make it easy to modify and modular, so you don't have to change the entire power supply. I'm going to sell it second-hand and go back to Seasonic, like I used to.

    Be quiet is over for me. I've had more than 30 different components from them, and it's gone from bad to worse.

    I used to go to them for pure performance and standard components, but that's no longer the case, and given the price of their components, well, it's bye-bye.

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