Mfr Part Number: GA-Z68A-D3H-B3 CPU: Socket 1155 Support Intel Core i7/ i5/ i3/ Pentium/Celeron series processors Chipset: Intel Z68 Express Chipset Memory: 4x DDR3-2133/1866/1600/1333/1066 DIMMs, Non-ECC, Dual Channel, Max Capacity Upto 32GB Slots: 3x PCI-Express 2.0 x16 Slots(one run at x8, one run at x4, Support ATI CrossFireX & nVidia SLI), 2x PCI-Express 2.0 x1 Slots, 2x PCI Slots SATA: 4x SATA2 Ports, Support RAID 0/ 1/ 5/ 10; 2x SATA3 Ports Audio: Realtek ALC889 7.1-Channel High Definition Audio CODEC LAN: Realtek RTL8111E Gigabit Ethernet Controller Ports: 12x USB 2.0 Ports (4 rear, 8 by headers); 2x USB 3.0 Ports; 1x PS/2 Port; 1x VGA Port; 1x DVI Port; 1x HDMI Port; 1x Optical S/PDIF Out; 1x RJ45 LAN Port; Audio I/O Jacks Power Connector: 1x 24pin main power connector; 1x 4pin ATX 12V power connector Form Factor: ATX, 30.5 x 22.5 cm Package: Retail