Proven reliability for price conscious, quiet PC builds

Specially designed by be quiet! with the price-conscious PC builder in mind - the System Power 9 cm, featuring true be quiet! reliability with two 12V-rails for rock-solid voltage stability. The series is certified 80 PLUS® Bronze efficient and able to support powerful GPUs with up to 4 PCIe connectors provided.

System Power 9‘s combination of power and quietness for a PSU of its class and efficiency is far beyond ordinary, making it possible for you to build cost-effective and reliable systems - a key differentiator in an era of nearly identical commodities.


Energy Efficiency

  • 80 PLUS® Bronze certification and up to 89% power conversion efficiency
  • Up to 700W of continuous power and two 12V-rails ensure rock-solid voltage stability for powerful GPUs
  • Full suite of top safety protections that defend against over-currents, over-voltages and under-voltages, short circuits, overheating and overloads, thus safeguarding your valuable components
  • Equipped with DC-to-DC power conversion technology for stable operation
  • Up to 4 PCIe connectors for powerful GPUs

Solid Cooling

  • High-quality 120mm fan is thermally controlled to strike the best balance between adequate cooling and maximum quietness
  • Attractive black sleeved cables simplify component installation, increase airflow and improve cooling
  • Efficient PSU design produces low operating temperatures

Outstanding Service and Support

  • 3-year manufacturer's warranty
  • Product conception, design and quality control in Germany