The Dark Power Pro 11 550W 80 Plus Platinum Modular Power Supply from be quiet! is an efficient, high-powered unit designed for enthusiasts. It delivers up to 550 watts of power and utilizes four +12V rail. Cooling is handled by a 135mm fan with an 1200 max rpm. Moreover, it's semi-modular, so you can use only the cables you need and store the rest. With less cable clutter, your system can benefit from improved airflow for lower temperatures. Included are enough cables for multiple storage drives, accessories, and even dual-slot graphics cards.