EVGA P55 FTW Edition SLI Mainboard 132-LF-E657-KR Intel P55 chipset Supports 4 DIMM Dual Channel memory up to 2600MHz 13 USB ports with 6 onboard 8 channel HD audio Firewire IE1394 and 1 x16 or 2 x 8 and 1 x 4 PCI Express lanes