Biostar A55MD2. Supported memory types: DDR3-SDRAM, Memory slots type: DIMM, Internal memory: 32 GB. Processor family: AMD, Compatible processor series: AMD A, AMD E2, Athlon II X4, Processor socket: Socket FM2. Audio output channels: 5.1, Audio system: Realtek ALC662. Width: 226 mm, Depth: 178 mm. RAID levels: 0, 1, 10