Socket 1151 mainboard series asus z270 form factor atx supports multi core processors quadcore compatible cpus intel core i3 intel core i5 intel core i7 processor codenames kaby lake skylake chipset intel z270 memory slot 4 ram operation mode dual channel ram type ddr4 memory clock speed 2 133 mhz memory clock speed oc max 4 133 mhz specification pc4 17000 specification oc max pc4 33064 maximum memory expansion 64 gb pcie 30 pcie 20 suppor