proc supp: intel pentium 4, pentium d, core2 duo, core2 quad (lga77 sockt) front side bus : 800/1066/1333mhz fsb (ht support) mem : 4 x ddrii sockets supports up to 8gb (ddrii 800, up to 1200 mhz sli-ready mem) exp slots: 1 x pci-e x1 slot, 2 x pci slots, 3 x pci-e x16 slot (2 gen2, 1 gen1, 3-way sli supported) i/o onboard: 1 x channel par ata133 connector (supp up to 2 devices) 6 x ser ataii ports, 1 x fdd port (supp 1.44/2.88 mb fdd), 1 x hd audio port (line-in, line-out, mic-in, side-stereo-out, rear-stereo-out, centre & subwoofer), 1 x ps/2 mouse port, 1 x ps/2 keyboard port 1 x par port (pin header), 1 x ser port (pin header) 6 x usb ports on back panel, 4 x usb on pin header 1 x optical out port, 2 x rj45 port lan : onboard two gigabit lan usb: intg in chipset, usb 2.0 firewire: 1 port on back panel, 1 port on pin header (via cable adaptor) board size : 305mm x 244mm, micro atx form factor hardware monitoring : cpu & system overheat protection