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HomePower Suppliesbe quiet!be quiet! Pure Power 12 M 850W
Global Power Suppliesbe quiet! Pure Power 12 M 850W — front
be quiet!

be quiet! Pure Power 12 M 850W

850 W • 80 PLUS Gold • Fully Modular • 10 years

850 WPower
80 PLUS GoldEfficiency
Fully ModularModularity
10 yearsWarranty
KACBU

Should I buy it?

be quiet! Pure Power 12 M 850W
CONSIDER
    Great choice if these matter:
    • Quiet mid-range builds where the PSU budget should stay reasonable
    • First self-builds that still deserve a 10-year-warranty supply
    • Upgrades adding a modern GPU that needs a 12VHPWR cable
    Watch out for:
    • Gold, not Platinum — efficiency-first buyers can do better at higher cost
    • The dual-rail 12V layout needs care when a single component draws heavily from one rail
    Regret riskLOWlimited data
    Main risks
    • Gold, not Platinum — efficiency-first buyers can do better at higher cost
    • The dual-rail 12V layout needs care when a single component draws heavily from one rail
    • Cable sleeving and connectors are built to a price — functional rather than premium
    The risk level is computed from the release date and verified weaknesses. The confidence score appears only once enough owner reports exist.
    Alternatives
    Corsair RM850x (2024)
    Corsair RM1000x (2024)
    This box relies only on verified specs, the release date and editorial assessment; owner reports join them as they come in. We do not predict prices.
    PowerConnectorsLaunchSpecificationsFAQAlternatives
    Power

    How much of it does it clean?

    Continuous power and efficiency certification — the PSU's real job.

    POWER

    Watt on the label, quality shows under load.

    850 W

    850 W — Continuous power

    850 W
    850 WContinuous power
    Connectors

    Which cards can it power?

    The cables required by modern graphics cards are listed here.

    CONNECTORS

    16-pin cable, prerequisite for next-gen graphics card.

    1× 12VHPWR (native)

    1× 12VHPWR (native) — 16-pin (12V-2x6) · PCIe 6+2-pin connectors — PCIe 8-pin count

    1× 12VHPWR (native)PCIe 6+2-pin connectors
    1× 12VHPWR (native)16-pin (12V-2x6)
    PCIe 6+2-pin connectorsPCIe 8-pin count
    Who Is It For?

    Where does it stand out?

    A usage guide built from the specs and the editors' tags; not a test result.

    Value for Money

    Quiet mid-range builds where the PSU budget should stay reasonable

    Good fit
    First self-builds that still deserve a 10-year-warranty supply

    Good fit
    Upgrades adding a modern GPU that needs a 12VHPWR cable

    Good fit
    Editorial Analysis

    Strengths and points to consider

    The Kacbu editors' assessment of the specifications the maker publishes. We do not test devices ourselves, so nothing here is a measured result. Anything taken from an independent review is shown with its publication and date in the Press section.

    Strengths based on the specs
    A native 12VHPWR connector at a value-line price — current GPUs connect without adapters
    The 120 mm be quiet! fan stays genuinely quiet at typical gaming loads
    10-year warranty matches units that cost considerably more
    Up to 93.2% efficiency is strong for the Gold class
    Fully modular cabling — unusual for a value line, standard here
    Things to consider
    Gold, not Platinum — efficiency-first buyers can do better at higher cost
    The dual-rail 12V layout needs care when a single component draws heavily from one rail
    Cable sleeving and connectors are built to a price — functional rather than premium
    Historical Product Info

    Official launch details

    Instead of tracking today's retail price, Kacbu keeps the product's official launch information as a reference.

    Design🇩🇪 Germany
    Manufacturing🇨🇳 China

    be quiet! is a German brand and engineers its supplies there. Like nearly all consumer power supplies, production runs at specialist ODM partners in China.

    This is not the current retail price — it shows the product's historical, official launch information.
    Specifications

    be quiet! Pure Power 12 M 850W specifications

    Click a linked value to see other products that share that same spec, and leave a comment on that spec.

    General

    Family
    Pure Power
    Segment
    Silent / Price-Performance
    Manufacturer
    be quiet!

    Power

    Power Rails
    2 independent 12V rails
    Wattage
    850 W

    Efficiency

    Peak Efficiency
    %93,2'ye varan verim
    Efficiency Rating
    80 PLUS Gold

    Design

    Fan
    120 mm temperature-controlled be quiet! fan
    Modularity
    Fully Modular
    Standard
    ATX 3.0 (ATX 3.1 uyumlu)

    Connectors

    PCIe 8-pin Connectors
    PCIe 6+2-pin connectors
    16-pin Connector
    1× 12VHPWR (native)

    Form Factor

    Form Factor
    ATX

    Warranty

    Warranty
    10 Year
    FAQ

    The most common questions about this product

    What the numbers on the spec sheet actually mean in day-to-day use.

    Does the Pure Power 12 M 850W have a 12VHPWR connector?
    Yes — it carries a native 12VHPWR connector for PCIe 5.0 graphics cards, plus classic PCIe 6+2-pin connectors for older GPUs.
    How long is the Pure Power 12 M warranty?
    be quiet! covers the Pure Power 12 M with a 10-year warranty.
    How efficient is the Pure Power 12 M 850W?
    It is 80 PLUS Gold certified with up to 93.2% efficiency.
    What is the difference between Pure Power 12 and Pure Power 12 M?
    The M stands for modular — the Pure Power 12 M has fully modular cabling, while the non-M version uses fixed cables.
    Shared Hardware

    Products that share this hardware

    This product's standout specs. You can jump to other models that use the same value.

    Wattage850 W5 more productsEfficiency Rating80 PLUS Gold5 more productsModularityFully Modular13 more products
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