The Cooler Master MWE Bronze series power supplies are 80 Plus Bronze certified, and available in 450W/500W/550W/600W/650W options to meet the needs of a mainstream system. This series uses advanced technology and premium components to keep up with your daily power demands, while delivering robust stability and reliability you can count on even in challenging conditions. The matte black housing with quality build presents a regal look, which seamlessly fits with your other high performance components.