Socket 1151 mainboard series asrock 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 2 400 mhz memory clock speed oc max 3 733 mhz specification pc4 19200 specification oc max pc4 29866 maximum memory expansion 64 gb pcie 30 pcie 20 supp