B3 Asus P8H61 MB, Intel® Socket 1155 for Intel® 2nd Generation Core™ i7 Processor/Core™ i5 Processor/Core™ i3 Processor, Supports Intel® Turbo Boost Technology 2.0, Intel® H61(B3) Express Chipset, 2 x DIMM, Max. 16 GB, DDR3 1333/1066 Non-ECC,Un-buffered Memory, Dual Channel memory architecture, 1 x PCIe 2.0 x16, 2 x PCIe 2.0 x1, 3 x PCI, 4 xSATA 3.0 Gb/s ports, Realtek® 8111E Gigabit LAN, ALC887 8-Channel High Definition Audio CODEC, 10 x USB 2.0/1.1 ports (6 ports at mid-board, 4 ports at the back panel), ATX Form Factor