be quiet! System Power 11 450W Power Supply Unit - Black

The be quiet! System Power 11 450W delivers reliable, stable power with an 80 PLUS Bronze efficiency rating, ensuring your system runs cool and quiet. With a continuous 450W output and a single +12V rail, it's built for entry-level gaming rigs and office PCs alike.

Overview

This power supply unit from be quiet! combines solid performance with whisper-quiet operation. The 120mm temperature-controlled fan spins only as fast as needed, keeping noise to a minimum even under load. The non-modular cable design keeps costs down while providing all essential connectors for a modern build.

What stands out

• 80 PLUS Bronze efficiency reduces wasted energy and heat
• Ultra-quiet 120mm fan with advanced airflow design
• Stable 450W output with strong +12V rail for reliable power delivery
• Comprehensive protection: OCP, OVP, UVP, SCP, OTP
• Compatible with ATX 12V v2.4 and EPS 12V 2.92 standards

Technical details

• Continuous power: 450W
• Efficiency: 80 PLUS Bronze (up to 88%)
• Fan: 120mm be quiet! fan with temperature control
• Cable management: Non-modular (fixed cables)
• Connectors: 1x 20+4 pin ATX, 1x 4+4 pin CPU, 2x PCIe 6+2 pin, 5x SATA, 2x Molex, 1x FDD
• Dimensions: 150mm (W) x 86mm (H) x 140mm (D)
• Safety: OCP, OVP, UVP, SCP, OTP
• Certifications: CE, CB, TUV, FCC

Our verdict

The be quiet! System Power 11 450W is a no-frills workhorse that delivers exactly what it promises: stable, efficient, and quiet power for budget-conscious builders. It's an excellent choice for those who prioritize reliability without breaking the bank.