BIOSTAR Hi-Fi H81S2 Ver. 6.1 BIOS H81AFC02 Support the Intel 4th generation Core i7 and Core i5 processors in the 1150 package Intel H81 single chip architecture Support 2-DIMM DDR3-1600/1333up to 16G maximum capacity BIOSTAR Hi-Fi Technology Built-in powerful headphone Amplifier Intel Rapid Start Technology Intel Smart Connect Technology