Semi-modular power supply includes some fixed power cables and some detachable power cables 650W power supply is reliable and ensures every component gets adequate power for maximum performance ATX form factor fits snugly into ATX cases Clean and steady DC-DC conversion with a +3.3V rail and +5V rail Compact size is just 140mm long which works really well in terms of space-saving 105-degrees C rated Japanese electrical components are capable of superb performance and years of reliability 120mm rifle-bearing fan offers a longer life and ensures low noise output 80 PLUS Bronze Certification means this power supply has an energy efficiency of up to 85%