"Like its predecessors, the new Seasonic X Series 560W power
supply incorporates several significant advances in PC power supply
design that result in excellent performance, high efficiency and the
ability to operate in silent-fanless mode at lower power levels.
Moving the +3.3V and +5V VRMs to the modular DC connector board was a
very smart move and I'm sure has many others wondering "why didn't we
think of that"? Add to that a good assortment of all modular cables,
green design innovations and a 5-year warranty and you have one very
good power supply."
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips