Gigabyte Z68A-D3-B3 LGA 1155 Intel Z68 SATA 6Gb/s USB 3.0 ATX Intel Motherboard GA-Z68A-D3-B3 CPU: Intel Core i7/i5/i3 processors, Intel Pentium processors, Intel Celeron processors in the LGA1155 package . Chipset: Intel Z68 Express Chipset Memory: 4 x 1.5V DDR3 DIMM sockets supporting up to 32 GB of system memory, Dual channel memory architecture. Support for DDR3 2133/1866/1600/1333/1066 MHz memory modules Audio: Realtek ALC889 codec, High Definition Audio, 2/4/5.1/7.1-channel, Support for S/PDIF Out. LAN: 1 x Realtek RTL8111E chip (10/100/1000 Mbit) Expansion Slots: 1 x PCI Express x16 slot, running at x16. 1 x PCI Express x16 slot, running at x4. 3 x PCI Express x1 slots. 2 x PCI slots. Support for ATI CrossFireX technology Storage Interface: Chipset: 2 x SATA 6Gb/s connectors, 4 x SATA 3Gb/s connectors, Support for SATA RAID 0, RAID 1, RAID 5, and RAID 10. S connectors/1 x CPU fan header/2 x system fan headers/1 x power fan header/1 x front panel header/ USB: Chipset: Up to 10 USB 2.0/1.1 ports, 2 x Etron EJ168 chips: Up to 2 USB 3.0/2.0 ports on the back panel.