EVGA Z68 ATX DDR3 2133 Intel - LGA 1155 Motherboards 130-SB-E685-KR Supports SATA II/3G, SATA III/6G, USB 2.0 and USB 3.0 Supports Intel Core i5 and i7 Socket 1155 Processors Support for 2-way SLI, PhysX or CrossFireX 4 DIMM Dual-Channel DDR3 2133Mhz+ (Up to 16GB) Z68 SLI Motherboard with Intel Z68 chipset Z68 SLI Motherboard with Intel Z68 chipset 4 DIMM Dual-Channel DDR3 2133Mhz+ (Up to 16GB) Support for 2-way SLI, PhysX or CrossFireX Supports Intel Core i5 and i7 Socket 1155 Processors Supports SATA II/3G, SATA III/6G, USB 2.0 and USB 3.0 3 PCI Express 2.0 Graphics Expansion Slots 10 USB 2.0 Ports 2 USB 3.0 Ports