Socket 2011 3 motherboard form factor e atx supports multi core processors 8 core compatible cpus intel core i7 processor codename haswell e chipset intel x99 memory slot 8 ram operation mode quad channel ram type ddr4 memory clock speed 2 133 mhz specification pc4 17000 maximum memory expansion 64 gb pcie 30 pcie 20 support number of pci x x 16 slots 4 number of pci x x 1 slots 3 network port 2 x rj45 lan ports back panel io ports 8 x usb30