ASUS M4A77T. Maximum internal memory: 16 GB. Processor family: AMD, Processor socket: Socket AM3. Audio system: VT1708S, Audio output channels: 7.1. Width: 305 mm, Depth: 213 mm. Controller (2nd) interface type: UltraDMA 133/100, Controller interface type: SATA 3 Gb/s, RAID levels: 0, 1, 10, JBOD