Yeah, we know: it's hard to get excited over a power supply -- unless it goes bad. No one needs that kind of excitement. Well, with a three year parts and labor warranty, Zalman obviously thinks you won't have to worry about it. The same power switching technology originally developed for the space program brings you a maximum of 81% efficiency to keep your energy bills down. Other advanced features including two separate +12Vdc rails, connectors for ATX motherboards and seven peripherals, six SATA drives, two floppy drives and two PCI-E boards. RoHS (Reduction of Hazardous Substances) compliant to reduce pollution, it has heat pipe technology and a 12 cm fan to reduce noise pollution as well. Now you can keep your computer powered, green, and quiet, all at once. And greater efficiency not only keeps you from being a drag on the electrical grid, it means less heat generated; your air conditioner will thank you. That IS exciting! Check it out for yourself. Fans: 1 x Dual Ball-Bearing 120mm Fan Main Connector: 20+4Pin +12V Rails: 2 PCI-Express Connector: 2 x 6-Pin SATA Power Connector: 6 Efficiency: Up to 81% @ 230VAC, Full & Typical Load Over Voltage Protection: Yes Overload Protection: Yes