Power Supply BE QUIET 400 Watts Efficiency 80 PLUS BRONZE PFC Active MTBF 100000 hours BN300

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