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Excellent - very satisfied

Excellent, high quality product and service. Good advice and very happy with the silent pc. Will buy again. (13th February 2019 via Trustpilot)
Pure Power 10 700W Quiet PSU, BN275
Pure Power 10 600W Quiet PSU, BN274
(2 customer ratings)
Pure Power 10 400W Quiet PSU, BN272
(1 customer rating)
Pure Power 10 300W Quiet PSU, BN270
(2 customer ratings)

be quiet Pure Power 10 Power Supplies

- Replaces the Be Quiet Pure Power 9 Power Supplies- Replaced by the be quiet Pure Power 11 Power Supplies

The be quiet Pure Power 10 PSUs offer a plethora of features you would only expect to see on more expensive power supplies.


  1. 12V-rails ensure rock-solid voltage stability for powerful multi-GPU systems
  2. 80PLUS certification and up to 91% power conversion efficiency
  3. Exceptionally quiet operation features a silence-optimised 120mm be quiet fan
  4. Stable operation thanks to DC-to-DC power conversion technology
  5. Attractively sleeved cables simplify component installation

PURE POWER is the entry-level series of power supplies from be quiet! and offers the proven reliability and security of the market leader. The units stand out for their quiet, efficient operation and solid quality. They are especially well suited for classic office and web applications, standard graphics applications and basic gaming.

The Pure Power 10 PSU series stands for peerless dependability and best-in-class features. Whether you are assembling a very quiet system, upgrading an existing PC, building a multimedia or a multi-GPU gaming system, your build will benefit from this PSU series. It simply has the best combination of features, performance and quality at very popular price.


  • Two independent 12V-rails improve power signal stability.
  • Active Clamp and Synchronous Rectifier (SR) technology produces very stable operation.
  • DC-to-DC conversion for even tighter voltage regulation under heavy cross-loading conditions.
  • Four PCI express connectors for multi-GPU system configurations.
  • Full suite of top safety protections defends against over-currents, over- and under-voltages, short circuits, overheating and overloads.
  • High-quality sleeved cables simplify component installation, increase airflow and improve cooling.
  • All-in-one cable with convenient easy-plug HDD connector.

Energy Efficiency

  • 80PLUS certification means very high operating efficiency for its class of up to 91%.
  • High efficiency means cost savings, less wasted heat, and an overall quieter operation.
  • Standby drain of less than 0.11 watts.
  • Meets Energy Star 6.0 guidelines.
  • Fulfils ErP 2014 guidelines.
  • Zero Load design supports Intel’s Deep Power Down C6/C7 mode.

Exceptionally Quiet Operation

  • High-quality 120mm be quiet! fan is thermally controlled and optimally governed to strike the best balance between effective cooling and deep quietness.
  • Airflow-optimised fan blades reduce turbulence, enabling a best-in-class quiet function with excellent airflow.
  • High efficiency design produces low operating temperatures.

SpecificationsPure Power 10 300WPure Power 10 400WPure Power 10 600WPure Power 10 700W
Model NumberBN270 BN272 BN274 BN275
Power300W 400W 600W 700W
+3.3V maximum output current21 A 25 A
+5V maximum output current15 A 18 A 20 A
+12V1 maximum output current18 A 24 A 32 A 36 A
+12V2 maximum output current18 A 20 A 28 A 30 A
Form factor ATX 12VVersion 2.4
Dimensions (LxWxH)150 x 150 x 86mm
Noise level at 20% load10.6 dBA 11.2 dBA 11.6 dBA
Noise level at 50% load10.8 dBA 11.1 dBA 12.5 dBA 13.1 dBA
Noise level at 100% load13.2 dBA 16.2 dBA 23.6 dBA 27.3 dBA
80PLUS CertificationBronze Silver
Active PFCYes
ProtectionOCP, OVP, UVP, SCP, OPP, OTP
Energy Star6.0
ErP2013 readyYes
Lifetime of fan at 25°C100,000 hours
ATX-Mainboard (20+4-pin)Yes
PCI-Express (6+2-pin)1 4
P8-/P4-connector1x P4+4
SATA Connectors4 5 6
Molex Connectors2 3
Floppy Connectors1
Warranty24 months
EAN barcode4260052185292 4260052185315 4260052185339 4260052185346

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YO17 6PZ
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