Based on the Intel B3 stepping P67 Chipset with 6 Series Chipset design issue fixed, the MSI P67A-G45 (B3) allows you to take advantage of the processing power of the evolved, 2nd generation Intel Core processors without any extra hassles. At one touch of a button, OC Genie II instantly improves your CPU performance by boosting the frequency to a new level beyond the Turbo Boost limits. You'll get more power from dual channel DDR3 memory architecture, X8:X8 AMD CrossFireX support and the next generation USB 3.0 & SATA 6Gb/s transfer technologies. And a good list of features like easy-to-use UEFI BIOS interface, THX TruStudio PRO and Military Class II Concept components make the MSI P67A-G45 (B3) a convenient, quality yet affordable board to build your power house from scratch. Number of Memory Slots: 4×240pin Memory Standard: DDR3 1066/1333/1600*/1866*/2133*(OC) PCI Express 2.0 x16: 2 (x16, x8) Onboard Video Chipset: None Audio Chipset: Realtek ALC892 Max LAN Speed: 10/100/1000Mbps SATA 3Gb/s: 4 CPU Type: Core i7 / i5 / i3 (LGA1155)