ASUS Rampage II Extreme LGA1366 Intel X58 DDR3-1600 ATX Motherboard Form Factor - ATX Processor Interface - LGA1366 Processors Supported - Intel Core i7, Intel Core i7 Extreme Additional Technologies - HyperThreading Technology , SLI Ready, CrossFireX Ready, Supports 45nm CPU, Intel QuickPath Interconnect QuickPath Interconnect - up to 6.4 GT/s