MSI  Intel Z68 (B3) Chipset ATX DDR3 1066 Intel - LGA 1155 Motherboards Z68A-GD80 (G3) CPU: Socket 1155 Support Intel Sandy Bridge Processors Chipset: Intel Z68 (B3) Chipset Memory: 4x DDR3-2133(O.C.)/1600/1333/1066 DIMMs, Dual Channel, Unbuffered, Max Capacity up to 32GB Slots: 2x PCI-Express 3.0 x16 Slots; 1x PCI-Express 2.0 x16 Slot; 2x PCI Express 2.0 x1 Slots; 2x 32-bit 3.3v/5v PCI Slots SATA: 4x SATA2 Ports, 2x SATA3 Ports, support RAID 0/ 1/ 5/ 10; 1x SATA3/ eSATA3 Combo Ports: 10x USB 2.0 Ports(4 rear, 6 by headers); 4x USB 3.0 Ports(2 rear, 2 by headers); 2x IEEE1394 Ports Power Connector: 1x 24pin main power connector, 1x 8pin CPU power connector Form Factor: ATX