Asrock 870 EXTREME3 R2.0. Memory channels support: dual, Supported memory clock speeds: 800, 1066, 1333, 1600, 1800, 1866 MHz, Maximum internal memory: 32 GB. Processor family: AMD, Compatible processor series: Athlon II X2, Athlon II X3, Athlon II X4, Phenom II X2, Phenom II X4, Phenom II X6, Sempron, Processor socket: Socket AM3. Audio output channels: 7.1, Audio system: ALC892. Width: 305 mm, Depth: 244 mm. RAID levels: 0, 1, 0+1, 5