be quiet! System Power 9 CM 400W offers renowned be quiet! reliability and quietness for cost-effective and reliable systems.

Rock-solid stability with 2 strong 12V-rails

DC-to-DC technology for tight voltage regulation

2 PCIe connectors for powerful GPUs

Temperature-controlled 120mm fan reduces system noise

Stand-by drain of less than 0.15 watts

80 PLUS® Bronze efficiency (up to 89%)

Semi-modular, high-quality sleeved and flat cables

All-in-one cable with S-ATA, HDD and FDD connectors

Complete suite of top safety features

Meets latest Intel® C6/C7, ErP and Energy Star 6.1 guidelines