Asrock 890GX Extreme4. Memory channels support: dual, Supported memory clock speeds: 800, 1066, 1333, 1600, 1800, 1866 MHz, Maximum internal memory: 16 GB. Processor family: AMD, Processor socket: Socket AM3. Audio output channels: 7.1, Audio system: THX TruStudio Pro. Width: 305 mm, Depth: 244 mm. RAID levels: 0, 1, 5, 10