Be Quiet! System Power 11M 650W ATX Power Supply (Black) Semi-Modular, 80 PLUS Gold

The Be Quiet! System Power 11M is a high-quality ATX power supply delivering 650W of reliable power with 80 PLUS Gold efficiency. Designed for silent operation and long-term stability, it features a semi-modular cable management system to reduce clutter and improve airflow. With a 120mm temperature-controlled fan, active PFC, and comprehensive protection features, this PSU is ideal for gaming PCs, workstations, and home servers.

Advantages

80 PLUS Gold certification ensures up to 92% efficiency, reducing energy waste and heat generation. The semi-modular design allows you to connect only the cables you need, simplifying installation and improving case airflow. The 120mm fan operates quietly thanks to temperature-controlled technology, while the dual +12V rail design provides stable power delivery. With a 5-year warranty and 100,000 hours MTBF, this power supply offers exceptional reliability.

Suitable for

• Gaming PCs requiring stable power for high-end components
• Workstations and home servers needing efficient, reliable power
• Silent PC builds where low noise is a priority
• Users who prefer a semi-modular cable system for cleaner builds

Key specifications

• Total Power: 650W
• 80 PLUS Efficiency: Gold
• Modularity: Semi-Modular
• Form Factor: ATX 12V v2.4
• Fan Size: 120mm
• Fan Technology: Temperature-controlled
• PFC Type: Active PFC
• Input Voltage: 100-240V
• Input Frequency: 50-60Hz
• +12V Rail Design: Dual Rail
• Max. Combined +12V Power: 650.4W
• ATX Main Connector: 1x 20+4 Pin
• EPS/CPU Connector: 1x 4+4 Pin
• PCIe Connector: 4x 6+2 Pin
• SATA Power Connector: 9
• Peripheral (Molex) Connector: 3
• Floppy (FDD) Connector: 1
• Protection Features: OCP, OVP, UVP, SCP, OPP, OTP
• MTBF: 100,000 hours
• Warranty: 5 Years

Recommendations

For optimal performance and longevity, pair this power supply with a high-quality surge protector or UPS. Ensure your case supports ATX power supplies and has adequate ventilation for the fan. The semi-modular design makes cable management easy, but we recommend using cable ties for a clean finish.