Model: DH67BL Chipset: Intel H67 CPU socket: Socket LGA1155 Compatibility: Intel Core i7 2хxx, Core i5 2хxx, Core i3-2хxx, Pentium 6xx/8xx (Sandy Bridge). Memory Type: DDR3 Number of DDR3: 4 Bus Speed : 5000 MHz Sound: 7.1 - channel HD Realtek ALC892 Networking: Intel 82579V 10/100/1000 Mbit/sec Number of PCI: 2 Number of PCI-Express x1: 2 Number of PCI-Express x16: 1 Serial ATA 3Gb/s: 4 Serial ATA 6Gb/s: 2 Ports: 2x USB 3.0, 6x USB 2.0, 1x ESATA, 1x RJ-45 LAN, 1x DVI-I, 1x HDMI, 1x optical S/PDIF-out, Line-in, Mic-in, Front-out, rear-out, sub/center-out. Form Factor: microATX (244 x 244 mm)