Next we took a visit to Seasonic's booth. They were advertising their 80 Plus efficiency power supplies, the S12 II and S12 Energy Plus. They also had an X900 power supply, which was built only for the European market. It cannot take 110V inputs like the ones in Asia and US. We can expect one in the US by the end of the year however. The Seasonic X900 900W power supply that has an 88% efficiency, four PCI Express power connectors with two being 8-pin connectors, and 3% regulation tolerance on the +12V rail.