Guaranteed to deliver 630W continuous output @ 40°C: (104F) operating environment. While most power supplies work well in optimal conditions Thermaltake ensures the SMART Series power supply can operate efficiently even in the higher temperatures found in the computer chassis. Robust & dedicated +12V rail delivers up to 45A to ensure your components get the power they need whenever they demand it. 80 PLUS certified: with 82-86% efficiency allows the SMART Series power supply to deliver full power while also saving cost on your utility bill thanks to the high efficiency power design. Double-forward switching circuitry offers low power loss & high reliability. Active Power Factor Correction provides clean & reliable power to your system. Ultra-silent operation with intelligent 12cm cooling fan with active speed control to ensure even under the heaviest load the SMART Series power supply will stay cool & stable. Intel & AMD multi core CPU compliant. Nvidia & ATI/AMD graphics card compatible. Dimension: 150mm (W)x 86mm (H)x 140mm (L). Built in industrial-grade protections: Over Current, Over Voltage, Over Power & Short-Circuit protections ensures that your components have many safeguards against possible power problems that could otherwise damage your expensive hardware. Connector Type Connectors & Cable length 24pin 1 x 20+4pin Main connector (550mm) ATX 12V 4x 4pin 1 x ATX 12V 4+4pin connector (550mm) Molex & FDD 4 x Peripheral &1 x FDD connectors (450mm + 150mm + 150mm + 150mm + 150mm) SATA 3 x S-ATA connectors (450mm + 150mm + 150mm ) 3 x S-ATA connectors (450mm + 150mm + 150mm ) PCI-E 6+2pin 1 x 6+2pin & 1 x 6+2pin PCI-E connector (450mm + 150mm)