Asrock P67 Extreme6. Memory channels support: dual, Memory voltage: 1.5 V, Supported memory clock speeds: 1066, 1200, 1300, 1333, 1600, 1800, 1866, 2133 MHz. Processor family: Intel, Compatible processor series: Core i3, Core i5, Core i7, Processor socket: Socket H2(1155). Audio output channels: 7.1, Audio system: Realtek ALC892. PCI Express slots version: 2.0. Width: 305 mm, Depth: 244 mm