I'd like to introduce you to the Seasonic M12D-750 power supply. It's big, it's black, and it's modular. This 750W power supply unit is actually in the family above the Seasonic S12 II 500W that PCSTATS tested a while back, and has many of the same ratings: it's 80 PLUS efficiency certified, has up to 99% Active Power Factor Correction (A-PFC) and universal AC support (120/240VAC). The M12D-750 is designed for the enthusiast who sees quad-core processors and SLI / CrossfireX videocards in their immediate future, so we have some pretty high expectations going into this review.