BE QUIET! 

be quiet! BN639 SFX L Power 600W, 80 PLUS Gold efficiency, full cable management and quiet operation thanks to 120mm high-quality fan.

Mfg Part Number:  BN639  
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Price: $167.18 + Free Shipping
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Last Updated: May 03, 2025
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Compact and silent energy

be quiet! SFX L Power 600W is especially recommended for mini ITX PCs and compact gaming systems. For compact PC systems that perform beyond the ordinary, with an ideal combination of features, power, efficiency and reliability, choose SFX L Power 600W.

  • 80 PLUS® Gold certification (up to 92% efficiency)
  • 4 PCIe connectors for powerful GPUs
  • Stable LLC, Synchronous Rectifier (SR) and DC-to-DC power conversion
  • Modular cables for maximum build flexibility
  • Temperature-controlled 120mm high-quality fan
  • SFX-to-ATX adapter bracket for usage with larger case sizes
  • 3-year manufacturer's warranty

POWERFUL, RELIABLE AND STABLE | A strong partner for Mini ITX and compact gaming PCs

The SFX L Power supplies CPUs and GPUs with steady and dependable power thanks to a stable 12V-rail, high quality Japanese capacitors and innovative technologies such as LLC, Synchronous Rectifier and DC-to-DC conversion. 4 PCIe connectors to support multi-GPU setups.

QUIET OPERATION FOR COMPACT SYSTEMS | Optimized for low-noise operation

This PSU is perfect for compact gaming PC or HTPC users who are looking for an SFX PSU that is fitted with a 120mm fan. This model includes a temperature-controlled fan. The SFX L Power was built to be very silent thanks to the fan technology used and it produces little wasted heat.

80 PLUS® GOLD CERTIFICATION | Very high operating efficiency

SFX L Power 600W is certified 80 PLUS Gold with an efficiency rating of up to 92% - a truly outstanding level for this class of PSU. The most compelling benefit: lower power consumption and consequently lower costs with cooler and quieter operation.

MODULAR AND FLAT CABLES | Highly compatible and convenient

Entirely modular cables are enhanced by premium black flat cables. This simplifies the installation and keeps the system tidy.

SUPER VERSATILE INSTALLATION | Adapts to your individual requirements

This power supply is particularly versatile in deployment thanks to the SFX-to-ATX adapter bracket provided. Not only does it fit into cases with an SFX form factor, but can also be installed in a few simple steps into larger ATX cases.

Main Specification
General Information
Manufacturer Listan GmbH & Co.
Manufacturer Part Number BN639
Manufacturer Website Address http://www.listan.de
Brand Name be quiet!
Product Line SFX L Power
Product Model SFX L Power 600W
Product Name SFX L Power 600W Power Supply
Product Type Power Supply
Technical Information
Specification Compliance SFX12V v3.3
Efficiency 92%
Power Factor Correction (PFC) Active
Number of Fans 1
Fan Diameter 120 mm
Protection Type Over Temperature
Protection Type Surge
Protection Type Overload
Protection Type Short Circuit
Protection Type Over Voltage
Protection Type Over Current
Protection Type Inrush Current
Protection Type Over Power
Protection Type Under Voltage
Modular Yes
Features Compact
Reliability
MTBF 100000 Hour
Power Description
Number of +12V Rails 1
Input Voltage 230 V AC
Input Voltage 120 V AC
Output Voltage 3.3 V DC
Output Voltage -12 V DC
Output Voltage 12 V DC
Output Voltage 5 V SB
Output Voltage 5 V DC
Output Voltage Detail 3.3 V DC @ 22 A
Output Voltage Detail 12 V DC @ 50 A
Output Voltage Detail 5 V SB @ 3 A
Output Voltage Detail 5 V DC @ 22 A
Output Voltage Detail -12 V DC @ 0.3 A
Output Power 600 W
Input Frequency 60 Hz
Interfaces/Ports
Number of SATA Power Connectors 6
PCI Express Connector Yes
Number of (6+2 pin) PCI Express Power Connectors 4
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 Mini-ITX
Height 2.5"
Width 4.9"
Weight (Approximate) 2.56 lb
Miscellaneous
Package Contents
  • SFX L Power 600W Power Supply
  • Screws
  • Cable Ties
  • User Manual
  • SFX-to-ATX Adapter Bracket
Certifications & Standards
  • CB
  • CE
  • cTUVus
  • FCC
  • RCM
  • TÜV
Energy Star Yes
Energy Efficiency Certification 80 Plus Gold
Energy Efficiency Certification ENERGY STAR 6.0
Energy Efficiency Compliance Energy-related Products Directive (ErP)
Environmental Compliance Restriction of Hazardous Substances (RoHS)
Environmental Compliance Waste Electrical and Electronic Equipment Directive (WEEE)
Warranty
Limited Warranty 3 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
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