BE QUIET! 

BN503 be quiet! Pure Power 12 M 650W - power supply - 650 Watt

Mfg Part Number:  BN503  
Image may not reflect the actual item.
Price: $148.17 + Free Shipping
Quantity:
More to Come
Last Updated: Jul 25, 2025
No Sales Tax except these states
, PO and Wire.

EXCEPTIONAL QUIET, SUPERIOR FEATURES

Pure Power 12 M 650W is ATX 3.0 compliant and PCIe 5.0 compatible and offers peerless dependability with best-in-class features. Pure Power 12 M 650W offers the best combination of features with outstanding compatibility.

  • 80 PLUS®Gold efficiency (up to 92.7%) 
  • ATX 3.0 PSU with full support for PCIe 5.0 GPUs and GPUs with 6+2 pin connectors
  • Exceptionally silent 120mm be quiet! fan
  • Advanced stability and voltage regulation thanks to LLC technology
  • 2 strong 12V-rails
  • Modular cables for maximum build flexibility
  • One PCIe 5.0 12VHPWR 450W and 2 PCIe 6+2 connectors for high-end GPUs 
  • 10-year manufacturer's warranty

80 PLUS® GOLD CERTIFIED | Very high operating efficiency

Pure Power 12 M 650W is certified 80 PLUS Gold with an outstanding efficiency rating of up to 92.7%. The most compelling benefit: lower power consumption, consequently lower costs, and above all a cooler as well as quieter operation. Pure Power 12 M 650W is always the correct choice for quiet systems and gaming PCs!

FUTURE-PROOF YOUR SYSTEM | Fulfills all ATX 3.0 specifications

Pure Power 12 M 650W is anATX 3.0 PSU and comes with both native integration of the 12VHPWR connector for next-generation PCIe 5.0 graphics cards, and PCIe 6+2-pin connectors for support of current-gen GPUs. This makes the PSU extremely versatile and the perfect choice for powerful systems of today and the ones to come.

THE NEW STANDARD OF POWER | For massive transient loads

Pure Power 12 M offers 650W of continuous power with 2 independent12V rails. Even if the graphics card demands excessive power for a short time: Pure Power 12 M 650W handles power excursions up to double its rated power with ease. This ensures reliable operation with the next generation of processors and graphics cards.

UNPRECEDENTED SILENT OPERATION | Achieved with a silence-optimized be quiet! fan

The exceptionally silent 120mm be quiet! fan is temperature-controlled to strike the best balance between effective cooling and quietness. Airflow-optimized fan blades reduce turbulence, enabling best-in-class quiet functionality. 

HIGH-CLASS TECHNOLOGIES | Rock-solid stability

With its LLC topology Pure Power 12 M 650W provides a best-in-class voltage regulation and efficiency. That makes it perfect for building or upgrading very quiet systems as well as gaming and media creation PCs.

MODULAR CABLES | Utmost convenience and compatibility

Thanks to their modularity, all unnecessary cables in the system are left out. Pure Power 12 M 650W simplifies cable management and routing for a tidy-looking system. A smoother airflow results from the uncluttered layout of the system, which means lower noise and temperatures inside the case.

Main Specification
General Information
Manufacturer Listan GmbH & Co.
Manufacturer Part Number BN503
Manufacturer Website Address http://www.listan.de
Brand Name be quiet!
Product Line Pure Power 12 M
Product Model Pure Power 12 M 650W
Product Name Pure Power 12 M 650W Power Supply
Product Type Power Supply
Technical Information
Specification Compliance ATX12V v2.3
Specification Compliance ATX 3.0
Specification Compliance EPS12V v2.92
Efficiency 92.7%
Power Factor Correction (PFC) Active
Number of Fans 1
Fan Diameter 120 mm
Protection Type Short Circuit
Protection Type Overload
Protection Type Inrush Current
Protection Type Under Voltage
Protection Type Over Power
Protection Type Surge
Protection Type Over Current
Protection Type Over Temperature
Protection Type Over Voltage
Modular Yes
Reliability
MTBF 100000 Hour
Power Description
Number of +12V Rails 2
Input Voltage 230 V AC
Input Voltage 120 V AC
Output Voltage -12 V DC
Output Voltage 12 V DC
Output Voltage 5 V SB
Output Voltage 5 V DC
Output Voltage 3.3 V DC
Output Voltage Detail 5 V DC @ 3 A
Output Voltage Detail 5 V DC @ 20 A
Output Voltage Detail 3.3 V DC @ 20 A
Output Voltage Detail -12 V DC @ 0.3 A
Output Voltage Detail 12 V DC @ 28 A
Output Voltage Detail 12 V DC @ 32 A
Output Power 650 W
Input Frequency 60 Hz
Interfaces/Ports
Number of SATA Power Connectors 5
PCI Express Connector Yes
Number of (6+2 pin) PCI Express Power Connectors 2
Number of (4+4 pin) CPU Power Connectors 1
Environmental Conditions
Minimum Operating Temperature 77°F (25°C)
Maximum Operating Temperature 104°F (40°C)
Physical Characteristics
Color Family Black
Product Color Black
Form Factor Internal
Height 3.4"
Width 5.9"
Weight (Approximate) 3.42 lb
Miscellaneous
Package Contents
  • Pure Power 12 M 1200W Power Supply
  • Screws
  • Cable Ties
  • User Manual
Certifications & Standards
  • BSMI
  • CB
  • CCC
  • CE
  • cRUus
  • cTUVus
  • CU
  • FCC
  • RCM
  • TÜV
  • UKCA
Energy Star Yes
Energy Efficiency Certification 80 Plus Gold
Energy Efficiency Certification ENERGY STAR 8.0
Energy Efficiency Compliance Energy-related Products Directive (ErP)
Environmental Compliance Waste Electrical and Electronic Equipment Directive (WEEE)
Environmental Compliance Restriction of Hazardous Substances (RoHS)
Warranty
Limited Warranty 10 Year
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
[0] [true] [Yes] [No] [No]